Muhammad, Akram Noori, and Mashaan Attallah Mahmood. “A New Optical Interference Method to Measure He-Ne Laser Wavelength”. Al-Mustansiriyah Journal of Science 29, no. 2 (November 17, 2018): 179–181. Accessed May 7, 2024. https://mjs.uomustansiriyah.edu.iq/index.php/MJS/article/view/410.