wattanawongwisut ธรรศ, Thongsopa ชาญชัย, and Jongkol พรศิริ. 2021. “Productivity Improvement in Rice Packing Operation”. EAU Heritage Journal Science and Technology 15 (3):164-74. https://he01.tci-thaijo.org/index.php/EAUHJSci/article/view/248351.