Amornsiriphong, Somsak, and Wutthichai Arakpotchong. “Social Innovation Development for Elderly Labors in the Informal Agricultural-Sector in Order to Reduce Social Inequality in Special Economic Zone (SEZ) of Thailand”. Journal of the Faculty of Arts, Silpakorn University 43, no. 1 (June 8, 2021): 232–250. Accessed April 29, 2024. https://so04.tci-thaijo.org/index.php/jasu/article/view/252079.