Andrizal, N. K., Aziz, R., & Sri Komala, P. (2026). THE STUDY OF SEPTIC TANK EMPTYING STRATEGY IN URBAN AREAS CASE STUDY OF PADANG CITY, WEST SUMATRA. Lingkar: Journal of Environmental Engineering, 6(2), 1–17. Retrieved from https://journal.ar-raniry.ac.id/index.php/lingkar/article/view/8686