Ren, C. “Analysis of The Occupational Mobility of Rural Preschool Teachers in Guizhou from The Perspective of Life Course Theory Based on Multi-Factor Statistics”. Journal of Research in Multidisciplinary Methods and Applications, vol. 1, no. 2, June 2022, p. 01220102004, http://www.satursonpublishing.com/jrmma/article/view/a01220102004.