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“Using Laser - induced breakdown spectroscopy system to determine the fertility of middle Iraqi soil”,
Iraqi Journal of Science
, vol. 59, no. 4B, pp. 2012–2019, Nov. 2018, Accessed: Apr. 10, 2025. [Online]. Available:
https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/478