Purwaningsih A. Pengaruh Model Pembelajaran Problem Based Learning Terhadap Keaktifan Peserta Didik SMP Negeri 8 Cilacap Jawa Tengah. JP3 [Internet]. 2022Feb.2 [cited 2025Jul.19];4(2):405-11. Available from: https://ejournal-jp3.com/index.php/Pendidikan/article/view/428