Nasomtrong, N. “Factors Influence to the Political Participation of Female Leader in Popan Sub-District Administrative Organization, Nachuek District in Mahasarakham Province”. Journal of Research and Development Institute Rajabhat Maha Sarakham University, vol. 6, no. 1, June 2019, pp. 123-30, https://so03.tci-thaijo.org/index.php/rdirmu/article/view/211397.