Benjaparn, Nattawat, and Supawat Rungsuriyawiboon. 2021. “The impact of macro and micro shocks on the productivity improvements of the main public airports in Thailand”. Thammasat Review of Economic and Social Policy 7 (2):80-102. https://so04.tci-thaijo.org/index.php/TRESP/article/view/256474.