Luftig, R. L. (1989). Assessment of learners with special needs. Allyn and Bacon.
Chicago-viite (17. p.)Luftig, Richard L. Assessment of Learners with Special Needs. Boston: Allyn and Bacon, 1989.
MLA-viite (9. p.)Luftig, Richard L. Assessment of Learners with Special Needs. Allyn and Bacon, 1989.
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