Dejsuwannachai, R. “Knowledge, Attitude and Preventive Behavior Toward COVID-19 Among Grade 10-12 Students in Bangkok”. INSTITUTE FOR URBAN DISEASE CONTROL AND PREVENTION JOURNAL, vol. 6, no. 2, Feb. 2022, pp. 1-15, https://he01.tci-thaijo.org/index.php/iudcJ/article/view/250811.