Siregar, Sakinah, and A. Naashir M. Tuah Lubis. “The Effect of Ethnomathematics Approach on Numbers 1-20 Counting Skills for Children 4-6 Years Old”. Jurnal Pendidikan Anak 13, no. 2 (September 16, 2024): 201–208. Accessed November 22, 2024. https://journal.uny.ac.id/publications/jpa/article/view/491.