BHARADWAJ, V. COLOURS: A SCIENTIFIC APPROACH. International Journal of Research -GRANTHAALAYAH, [S. l.], v. 2, n. 3SE, p. 1–6, 2014. DOI: 10.29121/granthaalayah.v2.i3SE.2014.3543. Disponível em: https://www.granthaalayahpublication.org/journals/granthaalayah/article/view/IJRG14_CC11_141. Acesso em: 9 dec. 2022.