Samosir, Beslon. ā€œImproving Student Learning Outcomes With the Application of Problem Based Learning Models in Microprocessor and Microcontroller Subjects at SMK Negeri 2 Pematangsiantarā€. International Journal of Multidisciplinary: Applied Business and Education Research 3, no. 7 (July 12, 2022): 1284-1294. Accessed March 10, 2025. https://ijmaberjournal.org/index.php/ijmaber/article/view/451.