H. Herqutanto, A. Wijaya, B. Sampurna, M. Napitupulu, and F. Afian, “Do the port health officers at Soekarno-Hatta International Airports and Zainuddin Abdul Madjid International Airports have sufficient knowledge, attitude, and practice regarding emergency landing?”, hsji, vol. 12, no. 1, pp. 33-38, Jun. 2021.