Putra, Levi Kusuma, Zakaria Wahab, Marlina Widiyanti, and Muchsin Saggaf Shihab. 2021. “The Effect of Word of Mouth, Brand Image, and Online Advertising on Purchase Decisions Using Grab-Food Services”. International Journal of Life Sciences 5 (2):76-84. https://doi.org/10.29332/ijls.v5n2.1390.