Yebpella, G. G., A. M. Magomya, R. Odoh, N. H. Baba, and J. Yakubu. “The Impact of Galena Mining in North-Eastern Nigeria on Nearby Food Crops”. Asian Journal of Chemical Sciences, Vol. 8, no. 1, June 2020, pp. 1-14, doi:10.9734/ajocs/2020/v8i119031.