Heller, D. A. (2004). Teachers wanted: Attracting and retaining good teachers. Association for Supervision and Curriculum Development.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিHeller, Daniel A. Teachers Wanted: Attracting and Retaining Good Teachers. Alexandria, Virginia: Association for Supervision and Curriculum Development, 2004.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিHeller, Daniel A. Teachers Wanted: Attracting and Retaining Good Teachers. Association for Supervision and Curriculum Development, 2004.
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