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APA Citation
Putulowski, J. R., & Crosby, R. G. (n.d.). effect of Personalized Instructor–Student E-mail and Text Messages on Online Students' Perceived Course Quality, Social Integration With Faculty, and Institutional Commitment. Journal of college student retention, 21, 184–201. http://access.bl.uk/ark:/81055/vdc_100089681435.0x000009