Eusea, Jared. "OpenStax College Algebra Chapter 4 Lecture Notes". OER Commons. Institute for the Study of Knowledge Management in Education, 30 Jul. 2019. Web. 31 Aug. 2024. <https://oercommons.org/authoring/56384-openstax-college-algebra-chapter-4-lecture-notes>.
Eusea, J. (2019, July 30). OpenStax College Algebra Chapter 4 Lecture Notes. OER Commons. Retrieved August 31, 2024, from https://oercommons.org/authoring/56384-openstax-college-algebra-chapter-4-lecture-notes.