Biswas, G. and Chatterjee, T. K. (1992) “Occurrence of Trace Toxic Metals in Commercial Food Colours”, The Indian Journal of Nutrition and Dietetics, 29(9), pp. 298–300. Available at: https://www.informaticsjournals.com/index.php/ijnd/article/view/8338 (Accessed: 3 May 2024).