Rafael, E. F. (2013). Technology as a social system: A system theoretical conceptualization. Philippine Sociological Review.
Chicago-viite (17. p.)Rafael, Erwin F. "Technology as a Social System: A System Theoretical Conceptualization." Philippine Sociological Review 2013.
MLA-viite (9. p.)Rafael, Erwin F. "Technology as a Social System: A System Theoretical Conceptualization." Philippine Sociological Review, 2013.
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