Effect of Problem Based Instruction (PBI) Model Assisted by Video on Learning Outcomes and Learning Motivation of Lathe Machining Engineering. Vomek [Internet]. 2025 Sep. 1 [cited 2026 Apr. 30];7(3):451-6. Available from: http://vomek.ppj.unp.ac.id/index.php/vomek/article/view/892