Dubin, F., & Olshtain, E. (1986). Course design: Developing programs and materials for language learning. Cambridge University Press.
Chicago-viite (17. p.)Dubin, Fraida, ja Elite Olshtain. Course Design: Developing Programs and Materials for Language Learning. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 1986.
MLA-viite (8. p.)Dubin, Fraida, ja Elite Olshtain. Course Design: Developing Programs and Materials for Language Learning. Cambridge University Press, 1986.
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