Ruttanapan, Monticha. 2021. “PROBLEMS AND DEVELOPMENT GUIDELINES ON MATERIAL ADMINISTRATION FOR MATERIAL OFFICIALS IN RAJAMANGALA UNIVERSITY OF TECHNOLOGY THANYABURI”. Pathumthani University Academic Journal 13 (2):14-31. https://so05.tci-thaijo.org/index.php/ptujournal/article/view/250644.