Zhao, Qiuhong, Mingrui Ding, Chengfeng Wu, and Yashuai Li. “Analysis of Labor Resources Wastage in China’s Real Estate Brokerage: From the Perspective of Opportunity Costs”. Journal of Civil Engineering and Management 29, no. 2 (January 23, 2023): 131–142. Accessed November 22, 2024. https://jbem.vgtu.lt/index.php/JCEM/article/view/18356.