Y, Annalisa, Murzal Murzal, Firman Muntaqo, & M. Syaifuddin. " Principle of Impartiality: Air Transport Restriction Policy During the Covid-19 Pandemic in Indonesia." Jurnal Magister Hukum Udayana (Udayana Master Law Journal) [Online], 11.2 (2022): 253-262. Web. 22 Jan. 2025