Ruswana, Angra. “PENGENALAN ETHNOMATEMATIKA KEPADA ANAK-ANAK DI LINGKUNGAN KELURAHAN KERTAHARJA”. Journal of Community Service (JCOS) 1, no. 2 (April 20, 2023): 1–6. Accessed July 27, 2025. https://journals.eduped.org/index.php/jcos/article/view/261.