Yifeng , Zheng. “BREAKING THE VICIOUS CIRCLE: COUNTERMEASURES FOR HEILONGJIANG PROVINCE’S ECONOMIC DEVELOPMENT AND POPULATION EMIGRATION”. American Journal of Business and Cooperative Research (AJBCR) 7, no. 1 (October 20, 2023): 24–29. Accessed June 23, 2025. https://zapjournals.com/Journals/index.php/AJBCR/article/view/1257.