S. NIZAMANI; Q. ALI; M. A. NIZAMANI; N. DHANANI. SMS Based M-Learning System for the Underprivileged Children in Developing Nations. Sindh University Research Journal - SURJ (Science Series), [S. l.], v. 50, n. 1, 2020. DOI: 10.26692/surj-ss.v50i1.1308. Disponível em: https://sujo.usindh.edu.pk/index.php/SURJ/article/view/1308. Acesso em: 22 may. 2026.