A., Edem Christopher, Grace Iniama, Vincent Osabor, Rebbeca Etiuma, and Matilda Ochelebe. 2009. “A Comparative Evaluation of Heavy Metals in Commercial Wheat Flours Sold in Calabar-Nigeria”. Pakistan Journal of Nutrition 8 (5): 585-87. https://doi.org/10.3923/pjn.2009.585.587.