Dungtripop, Wilawan, and Pankeawta Lakkanawanit. “Application of Concept of Activity-Based Costing (ABC) in Oil Palm Plantation Costing in Nakhon Si Thammarat Province”. WMS Journal of Management 7, no. Special (July 20, 2018): 54-73. Accessed June 6, 2020. https://so06.tci-thaijo.org/index.php/wms/article/view/135685.