วงศ์ศิริเมธีกุล พ., & ณรงค์ศักดิ์สกุล ส. (2018). Morale at Work of the Police Officers, Metropolitan Police Division 6: Morale at Work of the Police Officers, Metropolitan Police Division 6. Integrated Social Science Journal, Mahidol University, 1(2), 39–56. Retrieved from https://so02.tci-thaijo.org/index.php/isshmu/article/view/145964