GRITSUK, Yu. V.; GRITSUK, O. V. Online surveys as an element feedback in building cloud educational environment. CTE Workshop Proceedings, Kryvyi Rih, Ukraine, v. 2, p. 50–53, 2014. DOI: 10.55056/cte.186. Disponível em: https://acnsci.org/journal/index.php/cte/article/view/186.. Acesso em: 16 apr. 2026.