Giawa, Yulina, Hardi Tambunan, and Ruth M Simanjuntak. 2024. “Etnomatematika : Eksplorasi Motif Bola Nafo Keleomo Terhadap Konsep Bangun Datar”. Journal of Comprehensive Science (JCS) 3 (1):131-38. https://jcs.greenpublisher.id/index.php/jcs/article/view/594.