Gautama, Rolli. “Pengaruh Model Pembelajaran Problem Based Learning Terhadap Keterampilan Menulis: Literature Review”. GERAM (Gerakan Aktif Menulis) 13, no. 2 (December 28, 2025): 320–325. Accessed July 1, 2026. https://journal.uir.ac.id/index.php/geram/article/view/26138.