Siemens, George (2013). McGreal, Rory· Kinuthia, Wanjira, επιμ. «Massive Open Online Courses: Innovation In Education?». The OER Knowledge Cloud. Athabasca, Canada: Athabasca University Press. Open Educational Resources: Innovation, Research and Practice. Ανακτήθηκε στις 14 Μαΐου 2023.