BAN, Đoàn Văn; LIÊN, Doãn Ngọc; QUANG, Hoàng. Some problems on object-oriented software system modeling. Journal of Computer Science and Cybernetics, [S. l.], v. 18, n. 4, p. 375–383, 2012. DOI: 10.15625/1813-9663/18/4/1576. Disponível em: https://vjs.ac.vn/jcc/article/view/1576. Acesso em: 30 apr. 2025.