Evaluation Of Different Solvents For Determination Of Caffeine In Tea Leaves Using UV- Visible Spectrophotometric Method. JHAS [انترنت]. 25 نوفمبر، 2023 [وثق 6 أغسطس، 2026];6(12):277-81. موجود في: https://khsj.elmergib.edu.ly/index.php/jhas/article/view/265