Oktiana R, ’Ardhuha J, Makhrus M, Ayub S. Validity of Video-Assisted Problem-Based Learning Tools to Improve Critical Thinking Ability . J. Pendidik. Fis. Teknol. [Internet]. 2023 Dec. 13 [cited 2024 Nov. 22];9(2):289-96. Available from: http://jurnalfkip.unram.ac.id/index.php/JPFT/article/view/5390