Soni, Vandana. “Development and Characterization of Novel Vesicular System Using Purpurin-Phosphatidyl Choline As a Skin Antiaging Agent”. Asian Journal of Pharmaceutics (AJP) 12, no. 04 (February 4, 2019). Accessed July 2, 2022. https://www.asiapharmaceutics.info/index.php/ajp/article/view/2925.