Andhita, Krisna, and Rahmania Sri Untari. “OPBL Learning Model on Problem Solving Ability in Basic Programming Subjects in Vocational High Schools: Model Pembelajaran OPBL Terhadap Kemampuan Pemecahan Masalah Pada Mata Pelajaran Pemrograman Dasar Di Sekolah Menengah Kejuruan”. Indonesian Journal of Education Methods Development 18, no. 1 (February 27, 2023): 10.21070/ijemd.v21i.726. Accessed November 21, 2024. https://ijemd.umsida.ac.id/index.php/ijemd/article/view/726.