MANURUNG, Yulbrin; PRAYOGI, Ratnawati; TANGKUDUNG, Auderey G.D. Digital Patient Engagement through WhatsApp and Patient Loyalty: A Qualitative Case Study in Private Medical Practices in West Bandung, Indonesia. International Journal of Management Science and Information Technology, [S. l.], v. 6, n. 1, p. 745–755, 2026. DOI: 10.35870/ijmsit.v6i1.6793. Disponível em: https://journal.lembagakita.com/ijmsit/article/view/6793. Acesso em: 5 jun. 2026.