Pardthaisong, T. (2023). Fertility Decline and Consequences of the National Family Planning Program: An Analysis of the Achievements of Family Planning Activities in Chiang Mai and Lamphun Provinces. Journal of Population and Social Studies [JPSS], 1(1), 43–76. retrieved from https://so03.tci-thaijo.org/index.php/jpss/article/view/268419