Shields, Patricia and Hassan Tajalli. 2006. "Intermediate Theory: The Missing Link in Successful Student Scholarship". Journal of Public Affairs Education. Vol. 12, No. 3. Pp. 313-334. http://ecommons.txstate.edu/polsfacp/39/ [Архівовано 2021-02-24 у Wayback Machine.]
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Shields, Patricia and Hassan Tajalli. 2006. "Intermediate Theory: The Missing Link in Successful Student Scholarship". Journal of Public Affairs Education. Vol. 12, No. 3. Pp. 313-334. http://ecommons.txstate.edu/polsfacp/39/ [Архівовано 2021-02-24 у Wayback Machine.]