1.
Martin F, Bolliger DU, Flowers C. Design Matters: Development and Validation of the Online Course Design Elements (OCDE) Instrument. IRRODL [Internet]. 2021 Jan. 18 [cited 2024 Mar. 29];22(2):46-71. Available from: https://www.irrodl.org/index.php/irrodl/article/view/5187