Collins, Megan E., Nathan K. Mitchell, and Michael J. Nojeim. “Removing the Excuse: Using Free Course Materials to Improve Student Success in General Studies Courses”. Journal of Higher Education Theory and Practice 20, no. 5 (September 2, 2020). Accessed July 17, 2024. https://articlegateway.com/index.php/JHETP/article/view/3041.