1.
Sani HA, Tsafe A, Bagudo B, Itodo A. Toxic Metals Uptake by Spinach (Spinacea oleracea) and Lettuce (Lactuca sativa) Cultivated in Sokoto: A Comparative Study. Pak. J. Nutr. 2011;10(6):572–576. doi:10.3923/pjn.2011.572.576