APA citiranje

Ulloa Brenes, G. (2021). Reflections on the historical evolution of the concept of distance education.

Citación estilo Chicago

Ulloa Brenes, Gilbert. Reflections On the Historical Evolution of the Concept of Distance Education. 2021.

MLA citiranje

Ulloa Brenes, Gilbert. Reflections On the Historical Evolution of the Concept of Distance Education. 2021.

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