OTHMAN, Abdullah Tahir. Persamaan Cirian Matriks Sekutuan Daripada Suatu Graf Kekisi. MATEMATIKA, [S. l.], v. 1, p. 22–32, 1985. DOI: 10.11113/matematika.v1.n.454. Disponível em: https://matematika.utm.my/index.php/matematika/article/view/454. Acesso em: 7 may. 2024.