Chen, L.-C. (2022). Duo xiaomin zhi li? Lun minxinju yu haiguan jianban Daqing youzheng de jing he guanxi 奪小民之利？論民信局與海關兼辦大清郵政的競合關係. Xin shi xue 新史學 (New History), 33(2), 63-131