MASRIN GAFAR. Implementation of the Policy on the Use of Corona Virus Disease 2019 Vaccine Cards as a Requirement for Aviation Administration at Sultan Bantilan Airport, Galang District, Tolitoli Regency. Formosa Journal of Sustainable Research, [S. l.], v. 1, n. 7, p. 1115–1134, 2022. DOI: 10.55927/fjsr.v1i7.2236. Disponível em: https://journal.formosapublisher.org/index.php/fjsr/article/view/2236. Acesso em: 5 aug. 2026.