1. Reader SJ, Reader LG. Some co-relates of prenatal care among low income wed and unwed.Am J Obstet Gynecol 1964; 90: 1304–1314.
2. Kamat VV.Hindi Mulache Buddhimapan (I.Q. Testing of Indian Children). Pune; Purohit & Purohit Publishers, 1982; pp. 32–82.
3. Park JE, Park K.Text Book of Preventive & Social Medicine. 13th ed. Jabalpur; Bhanot Publishers, 1991.
4. Sankaranarayan S, Gandawar K, Garg R. Growth pattern of children under five years in urban slums.Pediatr Clin India 1991; 26 (1): 15–23.
5. Beston GH, Bengos JM. Nutrition and health in perspective: an introduction.W.H.O. Monograph on Nutrition in Preventive Medicine Series 1976; 62: 13–20.