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), pp. 128–142. doi:10.36329/jkcm/2022/v2.i9.13291.