Supachi Supalaknari และ Kosin hintao. (2018) FACTORS AFFECTING THE COMPETENCY OF ROAD CRASH INVESTIGATION IN THE CONTEXT OF THAI POLICE. <i>Humanities, Arts and Social Sciences Studies</i>, <i>18</i>(2), 429-442.Supachi Supalaknari และ Kosin hintao. "FACTORS AFFECTING THE COMPETENCY OF ROAD CRASH INVESTIGATION IN THE CONTEXT OF THAI POLICE". Humanities, Arts and Social Sciences Studies 18 (2018):429-442.Supachi Supalaknari และ Kosin hintao. FACTORS AFFECTING THE COMPETENCY OF ROAD CRASH INVESTIGATION IN THE CONTEXT OF THAI POLICE. Silpakorn University Research and Development Institute:ม.ป.ท. 2018.