สอนซ้าย ปรียานุช, and Saithip Jannopat. 2021. “Effects of Procurement Internal Control on Budget Management Effectiveness of Local Government Organization in Upper North Eastern 2 of Thailand”. Journal of Accountancy and Management 13 (4):24-37. https://so02.tci-thaijo.org/index.php/mbs/article/view/249195.