To form the Y-Bus matrix for power flow studies in power systems.
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D. P. Kothari and I. J. Nagrath. Modern Power System Analysis, Mc Graw-Hill (2008).
C. L. Wadhwa. Electrical Power Systems, New Age International Publishers (6th Edition).
Dr. Biswarup Das and Dr. Vinay Pant, NPTEL Course: Computer Aided Power System Analysis. Available: https://nptel.ac.in/courses/108107028