AN ASSESSMENT OF PHILIPPINE AIRPORT CHECK-IN OPERATION IN THE NEW NORMAL. Quantum Journal of Social Sciences and Humanities, [S. l.], v. 4, n. 4, p. 253–267, 2023. DOI: 10.55197/qjssh.v4i4.272. Disponível em: https://qjssh.com/index.php/qjssh/article/view/272. Acesso em: 25 aug. 2026.