Dinesh Kumar, Dr. (Mrs.) Taran Kumari, Dr. Mahesh Pd. Roy. A comparative study of fiber type (refractive index profile). IJAERD [Internet]. 2017 Aug. 25 [cited 2025 Jul. 6];4(8):740-4. Available from: https://www.ijaerd.org/index.php/IJAERD/article/view/3572