Mathuravalli, S. M. D., G. Manimegalai, and N. Jayalakshmi. “Effect of Socio Economic Status on Nutritional Status of Pregnant Women and Pregnancy Outcome in Selected Urban Slums of Madurai District”. The Indian Journal of Nutrition and Dietetics, vol. 38, no. 10, Oct. 2001, pp. 350-6, http://informaticsjournals.com/index.php/ijnd/article/view/6845.