Paethrangsi, N., W. Jandaboue, and S. Teekasap. “NEW STANDARD PRACTICE OF THE AIRPORT OPERATIONS FOR THAILAND DURING THE OUTBREAK OF CORONAVIRUS DISEASE 2019 (COVID-19)”. Phranakhon Rajabhat Research Journal : Humanities and Social Sciences, vol. 17, no. 2, Dec. 2022, pp. 285-01, https://so05.tci-thaijo.org/index.php/PNRU_JHSS/article/view/260885.