อมรสิริพงศ์ ส. and น้อมเนียน อ., “A Development of Social Welfare System for the Elderly Labors in Informal Sectors to Reduce the Social Inequality in Special Economic Zone: A Case Study of Sa Kaeo Special Economic Zone (Phase II)”, swtu, vol. 27, no. 2, pp. 27–47, Dec. 2019.