TRIPATHI, S. K. A detailed study on impact of factors on purchases of mobile phones with special reference to gorakhpur. International journal of economic perspectives, [S. l.], v. 2, n. 1, p. 11–15, 2008. Disponível em: http://ijeponline.org/index.php/journal/article/view/15. Acesso em: 13 nov. 2025.