JAGADESAN, S.; SUBRAMANIAN, D. M. V.; ARUNA, K. Air Ions Variation at Different Sites in Pudukkottai. International Journal of Science and Engineering Invention, [S. l.], p. 213 to 220, 2016. DOI: 10.23958/ijsei/vol02-i08/01. Disponível em: http://ijsei.in/index.php/ijsei/article/view/36. Acesso em: 4 may. 2024.