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APA Citation
Haydarov, R., Moxley, V., & Anderson, D. (2013). counting Chickens before They are Hatched: An Examination of Student Retention, Graduation, Attrition, and Dropout Measurement Validity in An Online Master's Environment. Journal of college student retention, 14, 429–449. http://access.bl.uk/ark:/81055/vdc_100179229098.0x000003