Ismawardani, Asa Novela, and Nia Ashton Destrity. “Analisis Isi Pesan Promosi Kesehatan Program Vaksinasi Covid-19 Pada Instagram Kementerian Kesehatan RI (@kemenkes_ri) Berdasarkan Health Belief Model”. Jurnal Media dan Komunikasi 3, no. 2 (June 22, 2023): 155–174. Accessed February 9, 2025. https://e-journal.unair.ac.id/MEDKOM/article/view/44174.