deiss, martha et al. "Proficiency Based Learning 101". OER Commons. Institute for the Study of Knowledge Management in Education, 24 Aug. 2018. Web. 08 Jan. 2025. <https://oercommons.org/authoring/47810-proficiency-based-learning-101>.
deiss, m., Birgé, S., & Young, G. (2018, August 24). Proficiency Based Learning 101. OER Commons. Retrieved January 08, 2025, from https://oercommons.org/authoring/47810-proficiency-based-learning-101.