Juni Sahfitri, Firmansyah, and Dwi Novita Sari. “Exploration Ethnomatematics in Musical Instruments Gordang Nine With Theory Geometry Two Dimensions and Three Dimensions”. International Journal of Educational Research Excellence (IJERE) 1, no. 2 (December 10, 2022): 187–192. Accessed November 22, 2024. https://ejournal.ipinternasional.com/index.php/ijere/article/view/214.