El-Akhdar, Ammar, et al. “Alternative Use of Space As A Self-Organizing Solution by Local Society to Meet Shortage of Living Spaces in The Informal Settlements of Egypt”. Journal of Social Transformation and Regional Development, vol. 5, no. 1, Aug. 2023, pp. 1-9, https://publisher.uthm.edu.my/ojs/index.php/jstard/article/view/7738.