Patri, Sonya Fiskha Dwi, and Sonya Heswari. “Development of Multimedia Teaching Materials for Problem Based Learning Models Using Professional 3D Pageflip on Class X Geometry Materials”. Edumatica : Jurnal Pendidikan Matematika 9, no. 02 (November 18, 2019): 23-33. Accessed July 4, 2024. https://online-journal.unja.ac.id/edumatica/article/view/6717.