Muftah, Aisha, and Abtisam Dhaw. 2023. “Evaluation Of Different Solvents For Determination Of Caffeine In Tea Leaves Using UV- Visible Spectrophotometric Method”. Journal of Humanitarian and Applied Sciences 6 (12):277-81. https://khsj.elmergib.edu.ly/index.php/jhas/article/view/265.