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  1. 1
    by Creswell, John W.
    Published 1994
    Book
  2. 2
    by Creswell, John W.
    Published 2014
    Edition: 4th edition, International student edition.
    Book
  3. 3
    Edition: 5th edition, international student edition.
    Book
  4. 4
    Edition: Sixth edition.
    Book