Brennan, Jessica. "Introduction to StudyStack". OER Commons. Institute for the Study of Knowledge Management in Education, 24 Sep. 2019. Web. 24 Nov. 2024. <https://oercommons.org/authoring/58410-introduction-to-studystack>.
Brennan, J. (2019, September 24). Introduction to StudyStack. OER Commons. Retrieved November 24, 2024, from https://oercommons.org/authoring/58410-introduction-to-studystack.