Ibrahim, Siti Sara, Abdul Halim Mohd Noor, Shafinar Ismail, and Mohd Ali Muhamad Don. 2019. “Performance of Waqf Cross-Sector Collaboration:A Systematic Literature Review (SLR) Approach”. Journal of Muwafaqat 2 (2):93-103. https://muwafaqat.uis.edu.my/index.php/journal/article/view/33.