Singphonngam K. Solutions to Solve Problems and Obstacles in the Work of Traffic Police when Setting up Checkpoints AffiliationTraining Center of Provincial Police Region 6. JMHR [internet]. 2026 Mar. 30 [cited 2026 Sep. 3];10(1):85-99. available from: https://so04.tci-thaijo.org/index.php/JMHR/article/view/aaa-07