ebrary, Inc, & Scherer, M. (2003). Keeping good teachers. Association for Supervision and Curriculum Development.
Chicago Style (17. basım) Atıfebrary, Inc, ve Marge Scherer. Keeping Good Teachers. Alexandria, VA: Association for Supervision and Curriculum Development, 2003.
MLA (9th ed.) Atıfebrary, Inc, ve Marge Scherer. Keeping Good Teachers. Association for Supervision and Curriculum Development, 2003.
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