I. Ullah, M. Ali, and A. Farooqi, “Chemical and Nutritional Properties of Some Maize (Zea mays L.) Varieties Grown in NWFP, Pakistan”, Pak. J. Nutr., vol. 9, no. 11, pp. 1113–1117, Oct. 2010, doi: 10.3923/pjn.2010.1113.1117.