murshed, fatima, Alnedhary , A. A., Almaqtari, M. A., & Al-herdy, F. A. (2025). Method Validation and Determination of Total Antioxidants, Polyphenols, Flavonoids, and Vitamin C Contents in the Yemeni Grapes. Sana’a University Journal of Applied Sciences and Technology , 3(2), 740–748. https://doi.org/10.59628/jast.v3i2.1499