Kubba, Rehab, and Khalida Samawi. “Theoretical Study of Electronic Properties and Vibration Frequencies for Tri-Rings Layer (6, 0) Linear (Zigzag) SWCNT”. Iraqi Journal of Science 55, no. 2B (November 24, 2023): 606–616. Accessed December 7, 2025. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11740.