Lazarko, Dmitry. "Authored material". OER Commons. Institute for the Study of Knowledge Management in Education, 05 Aug. 2019. Web. 02 Jul. 2024. <https://sandbox.oercommons.org/authoring/73-authored-material>.
Lazarko, D. (2019, August 05). Authored material. OER Commons. Retrieved July 02, 2024, from https://sandbox.oercommons.org/authoring/73-authored-material.