2023. Evaluation Of Different Solvents For Determination Of Caffeine In Tea Leaves Using UV- Visible Spectrophotometric Method. مجلة العلوم الإنسانية والتطبيقية. 6, 12 (نوفمبر 2023), 277–281. DOI:https://doi.org/10.65137/jhas.v6i12.265.