M. Aram, Z. Porhasannejad, E. Aghayare, and S. Behrouzinia, trans. “Intra-Cavity Loss Element Method for Measurement of the Small Signal Gain of a TEA CO2 Laser”. International Journal of Fundamental Physical Sciences 2, no. 4 (December 31, 2012): 58–60. Accessed October 16, 2026. https://www.fundamentaljournals.com/index.php/ijfps/article/view/39.