Kara, Mohammed, Amine Assouguem, Abdou R. Zerhouni, and Jamila Bahhou. 2021. “Phytochemical Content and Antioxidant Activity of Vinegar Prepared from Four Apple Varieties by Different Methods: doi.org 10.26538 Tjnpr V5i9.9”. Tropical Journal of Natural Product Research (TJNPR) 5 (9): 1578-85. http://mail.tjnpr.org/index.php/home/article/view/410.