Sari, Rita. “Pembelajaran Matematika Dasar Melalui Program Kelas Extra Bagi Mahasiswa Semester II PGSD STKIP Kristen Wamena”. SILIMO: Community Service Journal 2, no. 1 (May 31, 2025): 40–49. Accessed August 30, 2025. https://jurnal.stkipkw.ac.id/index.php/scsj/article/view/141.