bhattacharyya, Surajit. “MATRICES : SOME NEW PROPERTIES./ SB’S THEOREMS (SPECTRUM)”. International Journal of Research -GRANTHAALAYAH 9, no. 2 (March 1, 2021): 181–186. Accessed March 29, 2024. https://www.granthaalayahpublication.org/journals/granthaalayah/article/view/IJRG21_A02_5108.