Somboonsuke, B., Wettayaprasit, P., Phitthayaphinant, P., & Jongrungrot, V. (2015). Potentiality and Management of Household Labor in the Smallholding Rubber Production System: A Case Study in a Traditional Rubber Area of Southern Thailand. Kasetsart Journal of Social Sciences, 36(2), 258–270. Retrieved from https://so04.tci-thaijo.org/index.php/kjss/article/view/243223