Kayode, J., and J.E. Otoide. “Leaf Cuticle Variations in Amaranthus Spinosus As Indicators of Environmental Pollution”. Biological Sciences - PJSIR 50, no. 5 (October 9, 2007): 327–329. Accessed November 27, 2024. http://v2.pjsir.org/index.php/biological-sciences/article/view/1031.