P. GEETHA; S. SUBHARANJANI. Complements and Relative Complements in Modular Soft Rough Lattice. International Journal of Mathematics And its Applications, [S. l.], v. 5, n. 1 - B, p. 267–274, 2017. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/774. Acesso em: 3 jul. 2024.