Hadi, N. M., M. R. Mohammad, and H. G. Abdulzahraa. “Standoff Raman Detection of Explosive Materials Using a Small Raman Spectroscopy System”. Al-Nahrain Journal of Science, Vol. 20, no. 3, Sept. 2017, pp. 60-66, https://anjs.edu.iq/index.php/anjs/article/view/104.