Watcharawin Kamkiew และ Pairote Pathranarakul. (2021) Factors influencing service quality of Thai airways international flights. National Institute of Development Administration:ม.ป.ท.Watcharawin Kamkiew และ Pairote Pathranarakul. 2021. Factors influencing service quality of Thai airways international flights. ม.ป.ท.:National Institute of Development Administration;Watcharawin Kamkiew และ Pairote Pathranarakul. Factors influencing service quality of Thai airways international flights. ม.ป.ท.:National Institute of Development Administration, 2021. Print.