บุญพุฒิกร ชญารัตน์. 2018. “Development of Attitude Scales on Behavioral According to Code of Ethics of Teaching Profession for Student Teachers”. RMUTSB ACADEMIC JOURNAL (HUMANITIES AND SOCIAL SCIENCES) 3 (2). ฺBangkok, Thailand:177-90. https://so05.tci-thaijo.org/index.php/rmutsb-hs/article/view/136652.