Kumar H N, Harsha, et al. “A Study on Consumer Awareness, Safety Perceptions & Practices About Food Preservatives and Flavoring Agents Used in Packed Canned Foods from South India”. National Journal of Community Medicine, vol. 4, no. 03, Sept. 2013, pp. 402-6, https://www.njcmindia.com/index.php/file/article/view/1543.