Rachasarn, Maliyaam, Narathip Sriram, and Jaras Leeka. 2022. “The Promotion of Morality and Ethics in Personnel Operation Under Thai Customs”. Journal of Graduate MCU KhonKaen Campus 9 (3):256-67. https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/256210.