“PENERAPAN MODEL PROJECT BASED LEARNING DALAM MENINGKATKAN HASIL BELAJAR IPA MATERI PENCEMARAN LINGKUNGAN PADA SISWA KELAS VII SMPN 2 LANGOWAN”. BIOCHEPHY: Journal of Science Education 5, no. 1 (June 2, 2025): 627–634. Accessed October 9, 2026. https://journal.moripublishing.com/index.php/biochephy/article/view/1614.