Olewnik, Andrew, Randy Yerrick, Amanda Simmons, Yonghee Lee, and Brian Stuhlmiller. “Defining Open-Ended Problem Solving Through Problem Typology Framework”. International Journal of Engineering Pedagogy (iJEP) 10, no. 1 (January 27, 2020): pp. 7–30. Accessed April 25, 2024. https://online-journals.org/index.php/i-jep/article/view/11033.