Guntur, Muhamad Ikhsan Sahal, Seftika Anggraini, and Raden Rosnawati. “Optimizing Jigsaw Type of Cooperative Learning Model to Improve Students’ Mathematical Self-Confidence”. Mandalika Mathematics and Educations Journal 2, no. 2 (July 23, 2020): 122–130. Accessed May 3, 2024. http://jurnalfkip.unram.ac.id/index.php/MANDALIKA/article/view/1773.