Alhaque, N. F. S., P. M. Savitri, A. F. Muti, and Y. H. Hadiwiardjo. “Relationship Between Knowledge and Attitude Toward Travel Health Preparation Behaviour of Air Travellers During COVID-19 Pandemic”. Farmasains : Jurnal Farmasi Dan Ilmu Kesehatan, vol. 8, no. 2, Nov. 2023, pp. 75-82, doi:10.22219/farmasains.v8i2.30698.