[1]
Ukom, A. et al. 2009. Nutrient Composition of Selected Sweet Potato [Ipomea batatas (L) Lam] Varieties as Influenced by Different Levels of Nitrogen Fertilizer Application. Pakistan Journal of Nutrition. 8, 11 (Oct. 2009), 1791–1795. DOI:https://doi.org/10.3923/pjn.2009.1791.1795.