Liu, Shijing, Hongyu Jin, Benzheng Xie, Chunlu Liu, and Anthony Mills. “Concession Period Determination for PPP Retirement Village”. International Journal of Strategic Property Management 22, no. 5 (September 24, 2018): 424-435. Accessed November 14, 2024. https://tede.vgtu.lt/index.php/IJSPM/article/view/5476.