Ekkarat Suwannakul และ Rugphong Vongsaruj. (2018) Strategies for enhancing true loyalty of airline passengers and employees through customer-oriented service employees: a study of the low-cost airline business in Thailand. National Institute of Development Administration:ม.ป.ท.Ekkarat Suwannakul และ Rugphong Vongsaruj. 2018. Strategies for enhancing true loyalty of airline passengers and employees through customer-oriented service employees: a study of the low-cost airline business in Thailand. ม.ป.ท.:National Institute of Development Administration;Ekkarat Suwannakul และ Rugphong Vongsaruj. Strategies for enhancing true loyalty of airline passengers and employees through customer-oriented service employees: a study of the low-cost airline business in Thailand. ม.ป.ท.:National Institute of Development Administration, 2018. Print.