АНДРЕЕВ, И. Analysis of computer systems for the ordering foreign languages courses abroad . Modern engineering and innovative technologies, [S. l.], v. 1, n. 04-01, p. 46–50, 2017. DOI: 10.30890/2567-5273.2018-04-01-019. Disponível em: https://www.moderntechno.de/index.php/meit/article/view/meit04-01-019. Acesso em: 11 may. 2024.