APA citiranje

Barrientos, Z., & Umaña, R. (2009). Student attrition in posgraduate blended programs at the Universidad Estatal a Distancia (UNED), Costa Rica: Desertion or delay?

Citación estilo Chicago

Barrientos, Zaidett, y Roy Umaña. Student Attrition in Posgraduate Blended Programs At the Universidad Estatal a Distancia (UNED), Costa Rica: Desertion or Delay? 2009.

MLA citiranje

Barrientos, Zaidett, y Roy Umaña. Student Attrition in Posgraduate Blended Programs At the Universidad Estatal a Distancia (UNED), Costa Rica: Desertion or Delay? 2009.

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