APA aipamena

SIMPSON, O. (2003). Student retention in online, open and distance learning. Kogan page.

Chicago Style aipamena

SIMPSON, Ormond. Student Retention in Online, Open and Distance Learning. Kogan page, 2003.

MLA aipamena

SIMPSON, Ormond. Student Retention in Online, Open and Distance Learning. Kogan page, 2003.

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