Odunbaku, O.A., and N.A. Amusa. “Microbiological and Nutritional Quality of Hawked Kunun (A Sorghum Based Non-Alcoholic Beverage) Widely Consumed in Nigeria”. Pakistan Journal of Nutrition, vol. 8, no. 1, Dec. 2008, pp. 20–25, https://doi.org/10.3923/pjn.2009.20.25.