On generalized (Λ, sp)-closed sets. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 15, n. 4, p. 2127–2140, 2022. DOI: 10.29020/nybg.ejpam.v15i4.4302. Disponível em: https://www.ejpam.com/ejpam/article/view/4302. Acesso em: 23 feb. 2026.