ЕГОРОВА, И. Н.; КУНИЦА, М. Ю. Practical investigations of search engine optimization methods. Eastern-European Journal of Enterprise Technologies, [S. l.], v. 2, n. 9(56), p. 53–54, 2012. DOI: 10.15587/1729-4061.2012.3799. Disponível em: https://journals.uran.ua/eejet/article/view/3799. Acesso em: 4 jul. 2024.