Wongwassana S. Effects of COVID-19 on Job Competencies Towards Work Efficiency of Check-in Staff at Suvarnabhumi Airport. RJPJ [internet]. 2024 Aug. 31 [cited 2026 Sep. 28];18(59):562-78. available from: https://so05.tci-thaijo.org/index.php/RJPJ/article/view/273422