JASSAM, Ahmed A.; ESMAEEL, R. B. CONVERGENCES VIA ẛـ PREÙ€ gÙ€ OPEN SET. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 33, n. 1, p. 152–159, 2020. DOI: 10.30526/33.1.2381. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/2381. Acesso em: 3 apr. 2025.