Yang, Cheng, Lianfu Zhang, and Rong Tsao. “Chemistry and Biochemistry of Dietary Carotenoids: Bioaccessibility, Bioavailability and Bioactivities”. Journal of Food Bioactives 100 (June 30, 2020). Accessed August 5, 2020. http://www.isnff-jfb.com/index.php/JFB/article/view/139.