Chanwichian , Yanin, and Cherdpong Chiawchanwattana. 2019. “A Study of Design and Development Guidelines for Sugar Sack-Threshing Machine on Process of Sacks Transport into a Truck”. Journal of Engineering, RMUTT 17 (2):75-86. https://ph01.tci-thaijo.org/index.php/jermutt/article/view/241906.