Zhang, Jijiao. “The Hukou System As China’s Main Regulatory Framework for Temporary Rural-Urban Migration and Its Recent Changes”. DIE ERDE – Journal of the Geographical Society of Berlin 143, no. 3 (November 27, 2012): 233–247. Accessed May 7, 2024. https://www.die-erde.org/index.php/die-erde/article/view/130.