Afifah, N., I. Daud, and M. Mulyadina. “Viewer Behavior On Social Media: Viral Marketing of A Movie Trailer In Indonesia”. Gadjah Mada International Journal of Business, Vol. 24, no. 2, June 2022, pp. 178-97, https://dev.journal.ugm.ac.id/v3/gamaijb/article/view/15789.