ebrary, Inc, & Hamilton, L. S. (2012). Improving school leadership through support, evaluation, and incentives: The Pittsburgh principal incentive program. RAND.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিebrary, Inc, এবং Laura S. Hamilton. Improving School Leadership Through Support, Evaluation, and Incentives: The Pittsburgh Principal Incentive Program. Santa Monica, Calif.: RAND, 2012.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিebrary, Inc, এবং Laura S. Hamilton. Improving School Leadership Through Support, Evaluation, and Incentives: The Pittsburgh Principal Incentive Program. RAND, 2012.
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