Nupus, Okta Vutri, Armiati Armiati, and I Made Arnawa. “Hypothetical Learning Trajectory Design of Sinus Rules Based on PBL With Ethnomathematics of Minangkabau Culture”. Jurnal Gantang 7, no. 1 (August 30, 2022): 83–90. Accessed December 19, 2024. https://ojs.umrah.ac.id/index.php/gantang/article/view/4474.