Rerkrai, D., Wootimatee, Y. and Napachot, B. (1986) “Evaluating Manpower Utllization in Rural Development (Poverty Area)”, Kasetsart Journal of Social Sciences, 7(1), pp. 34–47. available at: https://so04.tci-thaijo.org/index.php/kjss/article/view/243753 (accessed: 13 September 2026).