1. Adamicki, F. (2004). Effects of pre-harvest treatments and storage conditions on quality and shelf-life of onions. Acta Horticulturae (ISHS), 688, 229–238.
2. Aher, D., Dabhade, A., Desai, P., Waghmare, D., & Suryawashi, K. (2019). The Onion Grading Machine, International Journal of Scientific Research and Review, 7(2), 631–638
3. Al-Qura’n, S.A. (2010). Ethnobotanical and ecological studies of wild edible plants in Jordan. Libyan Agriculture Research Center Journal International, 1(4), 231–243.
4. Anonymous. (2016a). Onion postharvest technology. http://nhb.gov.in.
5. Anonymous. (2016b). Onion storage guidelines for commercial growers.