“The Efektivitas Model Project Based Learning (PJBL) Berbasis Science Technology Engineering and Mathematics (STEM) Terhadap Kemampuan Berpikir Kreatif Matematis Siswa”. Indo-MathEdu Intellectuals Journal 5, no. 2 (May 31, 2024): 2632–2644. Accessed August 12, 2026. https://ejournal.indo-intellectual.id/index.php/imeij/article/view/1076.