Silitonga, T., R. W. S. Sumadinata, A. Sudirman, and T. Hidayat. “Civil Aviation Safety Evaluation Based on the Principle of International Civic Aviation Organization (ICAO): The Case of Indonesia”. International Journal of Health Sciences, vol. 6, no. S4, July 2022, pp. 10188-10, doi:10.53730/ijhs.v6nS4.11037.