ANALISIS KEBUTUHAN LKPD BERBASIS PROBLEM BASED LEARNING (PBL) TENTANG MATERI PERUBAHAN LINGKUNGAN DI MAN 1 PASAMAN BARAT. BIOCHEPHY:JSE [Internet]. 2025 Dec. 1 [cited 2026 Sep. 11];5(2):844-9. Available from: https://www.journal.moripublishing.com/index.php/biochephy/article/view/1718