Kalita, Rupjyoti. “Performance Evaluation of DWDM MPLS SDH CWDM Equipment in PowerGrid’s Telecom Network in North East India”. International Journal of Research in Engineering, Science and Management 7, no. 9 (September 30, 2024): 100–103. Accessed July 1, 2025. https://journal.ijresm.com/index.php/ijresm/article/view/3184.