Azizah, Muflichati Nurin. “Development of Responsibility through Problem Based Learning Using Google Classroom on the Triangle Rules Materials ”. Ideguru: Jurnal Karya Ilmiah Guru 6, no. 1 (March 15, 2021): 84-91. Accessed June 24, 2024. https://jurnal-dikpora.jogjaprov.go.id/index.php/jurnalideguru/article/view/182.