Jack R Frankal & Norman E Wallen. (2006). How To Design And Evaluate Research In Education (VIth.ed.). McGrow Hall.
Dyfyniad Arddull ChicagoJack R Frankal and Norman E Wallen. How To Design And Evaluate Research In Education. VIth.ed. Boston: McGrow Hall, 2006.
Dyfyniad MLAJack R Frankal and Norman E Wallen. How To Design And Evaluate Research In Education. VIth.ed. McGrow Hall, 2006.
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