Leelavijarn T, Rojchanasombat A, Panbura K, Witchayangkoon B. An Observation of Traffic Violations at a Crossroad with an Installation of a Patrol Police Officer Model. Sci Tech Asia [Internet]. 2014 Jun. 2 [cited 2024 Apr. 23];19(2):82-5. Available from: https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/18423