Author Guidelines

These guidelines explain how to prepare a manuscript for IJES : Indonesian Journal of Environmental Sustainability. Please read them together with the article template. Manuscripts that do not follow these guidelines are returned to the authors before review.

Contents: General requirements · Article types · Structure · Title, authors, abstract · Main text · Declarations · References (APA) · Format · Submission checklist

1. General requirements

• The manuscript must be original, not previously published, and not under review elsewhere. Translations of published work are not accepted.
• The topic must fit the Focus and Scope.
• Manuscripts may be written in English, Indonesian, or Arabic. Every manuscript has an abstract in English and Indonesian.
• Overall similarity must not exceed 20% (references and quotations excluded); see the Plagiarism Policy.
• Use of AI tools must follow and be disclosed under the AI Policy.
• Publication is free of charge; see Author Fees.

2. Article types

Type	Description	Structure
Research article	Original empirical study (field, laboratory, survey, or modelling).	Introduction, Methods, Results and Discussion, Conclusion
Conceptual article	Original argument or framework built on critical analysis of the literature, with the authors' own contribution.	Introduction, Discussion (in thematic sections), Conclusion
Book review	Critical review of a recent book within the scope.	Free structure

Maximum length: 20 pages in the journal template, including tables, figures, and references.

3. Structure of a research article

1. Title, authors, affiliations, correspondence email
2. Abstract (English and Indonesian) and keywords
3. Introduction: state of the art, research gap, and aim
4. Methods: design, site or materials, data collection, analysis
5. Results and Discussion: findings, interpretation, comparison with previous studies
6. Conclusion: answer to the aim, implications
7. Declarations and Acknowledgements
8. References

4. Title, authors, abstract, keywords

5. Main text

Introduction

Review recent, relevant studies (state of the art), state clearly the research gap or the novelty of the work, and end with the aim of the study.

Methods

Describe the methods in enough detail for others to repeat the study: study area or materials, sampling, instruments, analytical procedures, and statistical or modelling methods with software and versions. Studies involving humans or animals report ethical approval (see Declarations).

Results and Discussion

Present the key findings with clear data, then interpret them in relation to theory and compare them critically with recent studies, stating where the results confirm or differ from earlier work.

Conclusion

Answer the aim of the study, state the main new finding, and, where relevant, give implications or recommendations. Do not introduce new discussion.

Tables, figures, and equations

• Number tables and figures consecutively and refer to each in the text.
• Place table titles above tables and figure captions below figures; state the source of any material that is not the authors' own.
• Figures must be legible at print size (at least 300 dpi); maps include a scale, north arrow, and coordinate system.
• Use SI units. Write equations with the Microsoft Word equation editor and number them (1), (2), and so on.
• Arabic quotations and transliteration follow the transliteration table in the template.

6. Declarations (required)

Place the following statements after the Conclusion and before the References:

Statement	Content
Author Contributions	Role of each author, for example conceptualisation, fieldwork, analysis, writing (see Authorship).
Funding	Funder and grant number, or "This research received no external funding."
Conflict of Interest	Any competing interest, or "The authors declare no conflict of interest."
Declaration of AI Use	Tool, version, and purpose, or a statement that no AI tool was used (see AI Policy).
Data Availability	Where the data supporting the findings can be accessed, or why they cannot be shared (see Data Availability).
Ethical Approval	For research involving humans or animals: committee name, approval number, and year. For low or negligible risk research: the authors' statement of compliance with research ethics (see Research Ethics).

7. References: APA Style (7th edition)

8. Format

• Microsoft Word file prepared in the journal template; one column; 12-point Times New Roman; single line spacing.
• For double-blind review, remove author names, affiliations, and acknowledgements that reveal identity from the manuscript file and its document properties. Enter author names, affiliations, ORCID iDs, and email addresses only in the submission metadata in OJS.

9. Submission checklist

• Originality. The manuscript is original, has not been published, is not under review elsewhere, and is not a translation of published work.
• Scope and type. The topic fits the Focus and Scope, and the manuscript is a research article, conceptual article, or book review (see Article Types).
• Template and length. The manuscript is a Microsoft Word file in the journal template (one column, 12-point Times New Roman, single spacing), no longer than 20 pages including tables, figures, and references.
• Language and abstract. The manuscript is in English, Indonesian, or Arabic, with an abstract of no more than 200 words in both English and Indonesian and three to five keywords. Articles in Indonesian or Arabic also give the title in English.
• Anonymised file. For double-blind review, author names, affiliations, and identifying acknowledgements have been removed from the manuscript file and its document properties.
• Author metadata. Full names, affiliations, ORCID iDs (if available), and the corresponding author's email are entered in the submission form for every author.
• Declarations. Statements on Author Contributions, Funding, Conflict of Interest, Declaration of AI Use, Data Availability, and Ethical Approval (where applicable) are placed after the Conclusion.
• References. References follow APA Style (7th edition); research and conceptual articles have at least 15 references, at least 80% primary sources and at least 80% from the last 10 years, with DOIs where available, and every citation matches the reference list.
• Similarity and AI. Overall similarity does not exceed 20% (references and quotations excluded; see Plagiarism Policy), and any use of AI tools follows and is disclosed under the AI Policy.
• Figures and units. Figures are legible at print size (at least 300 dpi), maps include a scale, north arrow, and coordinate system, and SI units are used.

Related: Peer Review Process · Publication Ethics · Copyright