pandey, kiran. "OER Math". OER Commons. Institute for the Study of Knowledge Management in Education, 25 Feb. 2016. Web. 17 May 2024. <https://oercommons.org/authoring/12416-oer-math>.
pandey, k. (2016, February 25). OER Math. OER Commons. Retrieved May 17, 2024, from https://oercommons.org/authoring/12416-oer-math.