Mamuaya, I., Tampi, J. R. E., & Mangindaan, J. V. (2025). The Effect of Discount on Grabfood Purchase Decision for Students of the Faculty of Social and Political Sciences of Sam Ratulangi University Manado. Productivity, 6(2), 138–142. https://doi.org/10.35797/ejp.v6i2.61187