RAMESH, V. On the Face of the Sky for April and May. The Journal of the Indian Mathematical Society, [S. l.], v. 3, n. 2, p. 78–79, 1911. DOI: 10.18311/jims/1911/17820. Disponível em: https://informaticsjournals.com/index.php/jims/article/view/17820. Acesso em: 19 may. 2024.