บินสมประสงค์ พ. FORMATION OF A SPARSE BUS IMPEDANCE MATRIX AND ITS APPLICATION TO SHORT CIRCUIT STUDY. Eng Appl Sci Res [internet]. 2013 May 2 [cited 2026 Sep. 23];7(3):16-29. available from: https://ph01.tci-thaijo.org/index.php/easr/article/view/8330