“Calibration Free Laser Induced Breakdown Spectroscopy (CF-LIBS) As a Tool for Quantitative Elemental Analysis of Iraqi Cement”. Al-Nahrain Journal of Science, no. 1 (October 25, 2018): 60–68. Accessed May 3, 2024. https://anjs.edu.iq/index.php/anjs/article/view/2014.