1. Shukla PK (1982) Nutritional Problems of India. New Delhi: Prentice Hall of India.
2. Working Group on Fortification of Salt with Iron (1982) Am J Clin Nutr 35: 1442.
3. Narasinga Rao BS (1978) Studies on iron deficiency anaemia. Ind J Med Res 68: 58.
4. Venkataraman LV, Becker EW (1985) Biotechnology and Utilization of Algae: The Indian Experience. Delhi & Mysore: DST and CFI RI.
5. Lindsay WL, Norvell MA (1969) A new DTPA-PEA soil test for zinc and iron. Agron Abstr 61: 84.