Murniyati, Murniyati, and Winarto Winarto. 2018. “Perbedaan Penerapan Model Project Based Learning (PjBL) Dan Problem Based Learning (PBL) Ditinjau Dari Pencapaian Keterampilan Proses Siswa ”. PSEJ (Pancasakti Science Education Journal) 3 (1), 25-33. https://scienceedujournal.org/index.php/PSEJ/article/view/96.