Hui, Eddie Chi Man, Otto Muk Fai Lau, and Kak Keung Lo. “A Fuzzy decision‐making Approach for Portfolio Management With Direct Real Estate Investment”. International Journal of Strategic Property Management 13, no. 2 (June 30, 2009): 191-204. Accessed December 22, 2024. https://journals.vilniustech.lt/index.php/IJSPM/article/view/6190.