Egwu, G. N., Oluwole J. Okunola, and K. C. Ogwoke. 2023. “EFFECT OF ORGANIC MANURE AMENDMENT SOILS ON UPTAKE OF Pb, Cd AND Zn IN SPINACH”. FUDMA JOURNAL OF SCIENCES 2 (2), 157 -62. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1361.