Sadiq Gumi Abubakar, Jingchun Feng, Salisu Gidado Dalibi, Xinpeng Li, Chuanbin Zheng, and Liang Cao. “Project Portfolio Management Strategies in Housing Estate Development Organizations in Nigeria’s Built Environment”. Journal of Risk Analysis and Crisis Response 8, no. 2 (October 15, 2021). Accessed November 23, 2024. https://jracr.com/index.php/jracr/article/view/236.