Iorungwa, A.S. and Terhemba, I.T. 2009. Nutritional Sustainability via Positive Deviance: Challenges for Teaching, Research and Extension. Pakistan Journal of Nutrition. 8, 10 (Sep. 2009), 1706–1710. DOI:https://doi.org/10.3923/pjn.2009.1706.1710.