Gamas, Kylie. "North Dakota Social Studies Standards". OER Commons. Institute for the Study of Knowledge Management in Education, 21 Mar. 2018. Web. 26 Mar. 2023. <https://www.oercommons.org/authoring/27730-north-dakota-social-studies-standards>.
Gamas, K. (2018, March 21). North Dakota Social Studies Standards. OER Commons. Retrieved March 26, 2023, from https://www.oercommons.org/authoring/27730-north-dakota-social-studies-standards.