Hermiyanti. (2025). IMPLEMENTATION OF THE PROBLEM-BASED LEARNING METHOD TO IMPROVE THE UNDERSTANDING OF GRADE X GPI STUDENTS AT SMK NEGERI 4 MEULABOH ON MORALS IN ISLAM. Jurnal Pendidikan Profesi Guru, 3(1), 6–11. https://doi.org/10.22373/jppg.v3i1.7447