Faizin, Moch., and Mohamad Fatih. “Development of Code-Based Chess Board Media to Improve Calculating Abilty in Collection Material”. Edumaspul: Jurnal Pendidikan 8, no. 1 (March 1, 2024): 958-964. Accessed May 21, 2024. https://ummaspul.e-journal.id/maspuljr/article/view/7744.