Dyatmika, Sutama Wisnu, et al. “The Influence Of Brand Ambasador And Instagram Advertising On Zoya Cosemtic Product Purchase Decisions (Case Study On Follower Instagram @Zoyacosmetics)”. SENTRALISASI, vol. 10, no. 2, June 2021, pp. 94-103, doi:10.33506/sl.v10i2.1322.