S. PIOUS MISSIER; K. M. ARIFMOHAMMED. Certain Investigations on Digital Plane. International Journal of Mathematics And its Applications, [S. l.], v. 6, n. 2 - B, p. 25–32, 2018. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/696. Acesso em: 22 jul. 2024.