Putri, N. et al. 2022. Analisis Iklan Instant Messaging Terhadap Promosi Tumblr Day Pada Official Account Line Starbucks Indonesia Perspektif Islam. Jurnal Ilmiah Ekonomi Islam. 8, 1 (Mar. 2022), 571–578. DOI:https://doi.org/10.29040/jiei.v8i1.3700.