Sutrio S, Busyairi A, Doyan A, Kosim K, Hikmawati H. The Effectiveness of the Problem Based Flipped Classroom Model with E-Modules in Improving Critical Thinking Skills of Pre-Service Physics Teachers . J. Pendidik. Fis. Teknol. [Internet]. 13 Desember 2023 [dikutip 18 Mei 2024];9(2):274-83. Tersedia pada: http://www.jurnalfkip.unram.ac.id/index.php/JPFT/article/view/5826