Meenonthongmahasan P, Wongwangphoem PN, Fongchai J, Sornvongkaew N. Duty Performance of Traffic Police under Royal Thai Police up on Opinions of People in the Area of, Chum Phae Municipality, Chumphae District, KhonKaen Province. dhammathas [internet]. 2018 Dec. 26 [cited 2026 Apr. 22];18(3):67-78. available from: https://so06.tci-thaijo.org/index.php/dhammathas/article/view/114126