Hulu, Samahati. “The Application Problem Based Learning (PBL) to Increase Results Study Economicsin Class XI OTKP SMK Negeri 1 Majo”. Journal of General Education Science 2, no. 2 (February 6, 2024): 151–157. Accessed July 3, 2025. https://journal.berpusi.co.id/index.php/JoGEs/article/view/561.