ALDA, Muhamad. Development of a Mobile-Based Student Grade Processing Application Using the Waterfall Method. Ultimatics : Jurnal Teknik Informatika, [S. l.], v. 15, n. 1, p. 50–58, 2023. DOI: 10.31937/ti.v15i1.3134. Disponível em: https://ejournals.umn.ac.id/index.php/TI/article/view/3134. Acesso em: 2 aug. 2025.