Banaz Omer Ahmad1 and Kamal M. Mahmoud2 2023. Determination of Caffeine and Few Metals in Halabja Tea and Comparing with Various Tea Samples in Erbil Markets. Journal of Kufa for Chemical Sciences. 2, 9 (Aug. 2023), 128–142. DOI:https://doi.org/10.36329/jkcm/2022/v2.i9.13291.