Jaber, Saad Mahdi, and Hiyam Hassan Kadhem. “Certain Strong and Weak Types of Paracompact Maps”. Iraqi Journal of Science 65, no. 2 (February 29, 2024): 791–803. Accessed December 7, 2025. https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/8681.