Chuan-Udom, S., and W. Chinsuwan. “Operating Factors Affecting Harvesting Losses of Cleaning Unit of Rice Combine Harvesters”. Asia-Pacific Journal of Science and Technology, vol. 15, no. 6, Apr. 2017, pp. 487-95, https://so01.tci-thaijo.org/index.php/APST/article/view/83231.