On the Positive and Negative Solutions of -Laplacian BVP with Neumann Boundary Conditions. Journal of Information and Computing Science, [S. l.], v. 6, n. 1, p. 043–048, 2025. Disponível em: https://www.global-sci.com/jics/article/view/15147. Acesso em: 18 apr. 2026.