ROY, S.; MAITI, K. S. Spectroscopy at Midnight Sun Land. Indian Science Cruiser, [S. l.], v. 27, n. 4, p. 63–63, 2013. Disponível em: http://informaticsjournals.com/index.php/ISC/article/view/37738. Acesso em: 11 may. 2024.