MISHRA, Arijit; CHANDRA DEY, Pinku. On totient graph of a set of positive integers. Salud, Ciencia y Tecnología - Serie de Conferencias, [S. l.], v. 2, p. 423, 2023. DOI: 10.56294/sctconf2023423. Disponível em: https://conferencias.ageditor.ar/index.php/sctconf/article/view/341. Acesso em: 9 jul. 2025.