N. ELUMALAI; R. MANIKANDAN; M. KALAISELVI. On Secondary k-Idempotent Bimatrices. International Journal of Mathematics And its Applications, [S. l.], v. 6, n. 1 - D, p. 757–762, 2018. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/1137. Acesso em: 3 jul. 2024.