R.N. FRIES, B. CROSS, M.P. ROSSOW, D.M. WOEHL. Student Perceptions of Online Statics Homework Tools. Journal of Online Engineering Education, [S. l.], v. 4, n. 2, 2013. Disponível em: https://www.onlineengineeringeducation.com/index.php/joee/article/view/59. Acesso em: 25 apr. 2024.