AGARWAL, A. K. An Extension of Euler’s Theorem. The Journal of the Indian Mathematical Society, [S. l.], v. 70, n. 1-4, p. 17–24, 2003. Disponível em: https://informaticsjournals.co.in/index.php/jims/article/view/21887. Acesso em: 8 nov. 2024.