Tawfeeq, A.A. et al. 2025. Isolation, Identification, and Quantitative Evaluation of Caffeine from the Young Leaves of Green Tea (Camellia sinensis L.). Tikrit Journal of Pharmaceutical Sciences. 19, 1 (Jun. 2025), 76–84. DOI:https://doi.org/10.25130/tjphs.2025.19.1.8.76.84.