Chongthawonsatid, S., P. Isarabhakdi, A. Jampaklay, B. Entwisle, and C. M. Suchindran. “The Relationship Between Migration and Timing of Birth in Nang Rong, Thailand”. Journal of Population and Social Studies [JPSS], vol. 17, no. 1, July 2008, pp. 1-18, https://so03.tci-thaijo.org/index.php/jpss/article/view/84559.