1. U. C. Bureau. Annual Retail Trade Survey Supplemental E-commerce Tables. 2020. Available from: Census.gov. https://www.census.gov/data/tables/2020/econ/arts/supplemental-ecommerce.html
2. “List of Defunct Retailers of the United States,” Wikipedia. 2022. [Online]. Available from: https://en.wikipedia.org/w/index.php?title=List_of_defunct_retailers_of_the_United_States&oldid=1092477281
3. Redman R. Online grocery to more than double market share by 2025. Supermarket News. 2020. Available from: https://www.supermarketnews.com/online-retail/online-grocery-more-double-market-share-2025
4. Reagan C. What’s behind the rush into the low-margin grocery business. 2013. Available from: https://www.cnbc.com/id/100794988
5. “eGrocery Transformation: Market Projections and Insight into Online Grocery’s Elevated Future,” Mercatus. Available from: https://info.mercatus.com/online-grocery-shopper-consumer-behavior?_ga=2.50433130.296191318.1654268320-545170015.1654268320