Kamboh, M. K., M. K. . Iqbal, and B. Zafar. “Categorization of Urban Slums Using Fuzzy Logic System: A Theoretical Approach: Categorization of Urban Slums Using Fuzzy”. Proceedings of the Pakistan Academy of Sciences: A. Physical and Computational Sciences, vol. 57, no. 1, Mar. 2021, pp. 7-16, https://ppaspk.org/index.php/PPAS-A/article/view/46.