Susilo, D., and C. C. Dizon. “COMMUNICATING SAFETY AND HYGIENE LEVEL POST COVID-19 IN AVIATION: DIGITAL MARCOMM STRATEGY OF SINGAPORE AIRLINES”. SIBATIK JOURNAL: Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan, vol. 2, no. 9, Aug. 2023, pp. 2837-52, doi:10.54443/sibatik.v2i9.1328.