Thimmayamma, B. V. S., P. Rau, and K. Visweswara, Rao. “Socio-Economic Status, Diet and Nutrient Adequacies of Different Population Groups in Urban and Rural Hyderabad”. The Indian Journal of Nutrition and Dietetics, vol. 19, no. 6, June 1982, pp. 173-8, https://www.informaticsjournals.com/index.php/ijnd/article/view/12915.