R.N. Fries, B. Cross, M.P. Rossow, D.M. Woehl (2013) “Student Perceptions of Online Statics Homework Tools”, Journal of Online Engineering Education, 4(2). Available at: https://onlineengineeringeducation.com/index.php/joee/article/view/59 (Accessed: 27 April 2024).