NARANIENGAR, M. T. The Six-Fold Systems of Similar Circumscribed and Inscribed Triangles of a Given Triangle. The Journal of the Indian Mathematical Society, [S. l.], v. 4, n. 1, p. 21–23, 1912. DOI: 10.18311/jims/1912/17781. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/17781. Acesso em: 1 may. 2024.