AzkiyaH., and TranggonoD. “Pengaruh Komunikasi Word of Mouth Terhadap Keputusan Pembelian Eustacio Coffee Di Surabaya”. Da’watuna: Journal of Communication and Islamic Broadcasting, Vol. 3, no. 3, June 2023, pp. 1152-9, doi:10.47467/dawatuna.v3i3.3662.