George, K. A., N. Suresh Kumar, R. Sreedevi, and J. J. Lal. “Nutrition Awareness, Iodine Deficiency Disorders and Use of Iodated Salts”. The Indian Journal of Nutrition and Dietetics, vol. 38, no. 8, Aug. 2001, pp. 256-61, https://www.informaticsjournals.com/index.php/ijnd/article/view/6879.