2021. DETERMINATION OF HEAVY METALS ACCUMULATION IN LACTUCA SATIVA AND SPINACIA OLERACEA GROWN FROM CONTAMINATED SOILS OBTAINED BESIDE FCE KATSINA, NIGERIA. FUDMA JOURNAL OF SCIENCES. 4, 4 (Jun. 2021), 207–212. DOI:https://doi.org/10.33003/fjs-2020-0404-473.