B. Ikyo, D. Enenche, S. Omotosho, M. Ofeozo, and T. Rotimi, “Spectroscopic Analysis of the Effect of Organic and Inorganic Fertilizers on the Chlorophylls Pigment in Amaranth and Jute Mallow Vegetables”, Nig Ann pure App Sci, vol. 3, no. 1, pp. 115–121, Jul. 2020.