Widuta, L. and Muammar Rinaldi 2023. The Effectiveness of E-WOM (Electronic Word Of Mouth) and Instagram Social Media Promotion on Purchase Intention at Liang Teh Sumatera. PROCEEDING INTERNATIONAL BUSINESS AND ECONOMICS CONFERENCE (IBEC). 2, 1 (Dec. 2023), 92–101. DOI:https://doi.org/10.47663/ibec.v2i1.86.