Kusumawati, K., Saragi, S., & Putriana, L. (2021). Analysis of the Influence of Product Attributes and Consumer Characteristics on Consumer Preferences and Purchase Decisions of Vitamin C Oral Products During The Covid-19 Pandemic. Enrichment : Journal of Management, 12(1), 751-763. https://doi.org/10.35335/enrichment.v12i1.302