SHERLY AMELIA; SELARAS, Ganda Hijrah; SYAMSURIZAL, Syamsurizal; DARUSSYAMSU, Rahmawati. Studi Literatur: Pengaruh Model Problem Based Learning Berbantuan 4R terhadap Kemampuan Pemecahan Masalah Siswa pada Pembelajaran Biologi. Al-Alam: Islamic Natural Science Education Journal, [S. l.], v. 5, n. 1, p. 369–381, 2026. DOI: 10.33477/al-alam.v5i1.15599. Disponível em: https://jurnal.iainambon.ac.id/index.php/JTI/article/view/15599. Acesso em: 25 jul. 2026.