AMALIA, Rizki -. Mathematics Fun Day for Orphanage of Pemerhati dan Penguatan Anak Negeri Kota Langsa. Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA, [S. l.], v. 2, n. 1, p. 1–4, 2018. DOI: 10.21831/jpmmp.v2i1.15972. Disponível em: https://journal.uny.ac.id/index.php/jpmmp/article/view/15972. Acesso em: 10 may. 2025.