Wijanarko, Andrian, Kasmadi Supardi, and Putut Marwoto. “Keefektifan Model Project Based Learning Terbimbing Untuk Meningkatkan Keterampilan Proses Sains Dan Hasil Belajar IPA”. Journal of Primary Education 6, no. 2 (September 11, 2017): 120-125. Accessed September 27, 2024. https://journal.unnes.ac.id/sju/jpe/article/view/17561.