Ilhamdi, Mohammad Liwa, Didik Santoso, and Sri Prapti Astuti. “Penerapan Metode Problem Based Learning Untuk Meningkatkan Hasil Belajar Biologi Mata Pelajaran Lintas Minat”. Jurnal Pijar Mipa 15, no. 2 (March 1, 2020): 135–139. Accessed June 29, 2022. https://jurnalfkip.unram.ac.id/index.php/JPM/article/view/1699.