กองทาน. (2019) “The Quality of Work Life and Organizational Commitment of Employees Smart Traffic Company Limited”, Journal of Humanities and Social Sciences University of Phayao, 7(1), pp. 251 - 273. Available at: https://www.tci-thaijo.org/index.php/Humanties-up/article/view/206367 (Accessed: 14December2019).