Mardiani, Retma, Nur Khoiri, and Bunga Ihda Norra. “Inovasi Modul Pembelajaran Biologi Terintegrasi Problem Based Learning Dilengkapi Dengan Tes Diagnostik Multiple Choice Two Tier Pada Materi Sistem Ekskresi Manusia Di SMP”. Bioeduca : Journal of Biology Education 2, no. 2 (October 19, 2020): 115–124. Accessed January 22, 2025. https://journal.walisongo.ac.id/index.php/BIOEDUCA/article/view/6496.