Introduction To Research In Education 9Th Edition by Donald Ary (Author), Lucy Cheser Jacobs (Author), Christine K. Sorensen Irvine 9 edition (January 1, 2013) Language:English –

Author(s): Donald Ary (Author), Lucy Cheser Jacobs (Author), Christine K. Sorensen Irvine 9 edition (January 1, 2013) Language:English ISBN-10:1133596746 ISBN-13:978-1133596745

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