Katz, Kate. "How to use Groups on OER Commons". OER Commons. Institute for the Study of Knowledge Management in Education, 02 Dec. 2013. Web. 22 May 2019. <https://www.oercommons.org/authoring/4464-how-to-use-groups-on-oer-commons>.
Katz, K. (2013, December 02). How to use Groups on OER Commons. OER Commons. Retrieved May 22, 2019, from https://www.oercommons.org/authoring/4464-how-to-use-groups-on-oer-commons.