Muhammad Shoaib Khan, Haji, and Naveed Akhtar. “Determination of Antioxidant Activity and Total Anthocyanin Contents of Extracts from Pulp and Peel of Malus Domestica”. Asian Journal of Chemistry 24, no. 6 (February 11, 2012): 2829–2830. Accessed June 30, 2024. https://asianpubs.org/index.php/ajchem/article/view/9241.