ZHAFIRA, D.; NASUTION, W. N.; JAYA, I. PENGEMBANGAN MEDIA PEMBELAJARAN MOBILE LEARNING BERBASIS ANDROID PADA MATERI NOTASI SIGMA. Algebra : Jurnal Pendidikan, Sosial dan Sains, [S. l.], v. 1, n. 3, p. 43–52, 2021. Disponível em: https://ejournal.yana.or.id/index.php/algebra/article/view/39. Acesso em: 30 sep. 2026.