Eusea, Jared. "OpenStax College Algebra Chapter 7 Lecture Notes". OER Commons. Institute for the Study of Knowledge Management in Education, 30 Jul. 2019. Web. 30 Sep. 2023. <https://oercommons.org/authoring/56387-openstax-college-algebra-chapter-7-lecture-notes>.
Eusea, J. (2019, July 30). OpenStax College Algebra Chapter 7 Lecture Notes. OER Commons. Retrieved September 30, 2023, from https://oercommons.org/authoring/56387-openstax-college-algebra-chapter-7-lecture-notes.