1. US Online Grocery Survey 2019https://coresight.com/research/us-online-grocery-survey-2019/
2. The Online Grocery Report: The Market, Drivers, Key Players, and Opportunities in a Rising Segment of Ecommercehttps://www.businessinsider.com/online-grocery-report-2020
3. The State of Global Online Grocery Retail;Meena,2018
4. The Digitally Engaged Food Shopper: Developing Your Omnichannel Collaboration Modelhttps://www.fmi.org/digital-shopper
5. Online Grocery Shopping Still Rare in U.S. Galluphttps://news.gallup.com/poll/264857/online-grocery-shopping-rare.aspx