Renqvist, U. H., A. C. De Vreeze, and B. Evenhuis. “The Effect of Traditional Cooking Methods on Carotene Content in Tropical Leafy Vegetables”. The Indian Journal of Nutrition and Dietetics 15, no. 5 (May 1, 1978): 154–158. Accessed May 1, 2024. https://informaticsjournals.com/index.php/ijnd/article/view/12207.