Boonpisuttinant, Korawinwich, Usa Sodamook, Warintorn Ruksiriwanich, and Supanida Winitchai. 2014. “In Vitro Anti-Melanogenesis and Collagen Biosynthesis Stimulating Activities of Star Grass (<i>Hypoxis Aurea </I>Lour.) Extracts”. Asian Journal of Applied Sciences 2 (4). https://www.ajouronline.com/index.php/AJAS/article/view/1531.