Teerarojanarat, S., A. . Patnukao, S. . Surawit, and S. Srichiraratana. “‘COVID-19’ from a Geographical Perspective : : A Case Study of the Daily Activities of the Residents of Bangkok and Vicinity”. Journal of Letters, vol. 51, no. 1, June 2022, pp. 110-33, https://so03.tci-thaijo.org/index.php/jletters/article/view/257811.