“Pengaruh Model Problem Based Learning Terhadap Keterampilan Pemecahan Masalah Matematis Peserta Didik SMK”. Titian Ilmu: Jurnal Ilmiah Multi Sciences 18, no. 1 (January 17, 2026): 15–21. Accessed August 8, 2026. http://www.journal.unuha.ac.id/index.php/JTI/article/view/4981.