Mandi, K., Al-Kubaisy, R., Al-Mousawi, M., & Daoud, S. (2019). Analysis of Different Types of Tea Leaves by X-Ray Flourescence Technique. Ibn AL- Haitham Journal For Pure And Applied Science, 18(3), 13-21. Retrieved from http://jih.uobaghdad.edu.iq/index.php/j/article/view/2218