NATH, P.; SINGH, D. K. Some Functional Equations and Their Corresponding Sum Forms. Sarajevo Journal of Mathematics, [S. l.], v. 12, n. 1, p. 89–106, 2024. DOI: 10.5644/SJM.12.1.07. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/201. Acesso em: 15 oct. 2024.