Royal, B. (2017). Power thinking (3rd impression.). Jaico Publishing, Mumbai.
Chicago Style (17. basım) AtıfRoyal, Brandon. Power Thinking. 3rd impression. Jaico Publishing, Mumbai, 2017.
MLA (9th ed.) AtıfRoyal, Brandon. Power Thinking. 3rd impression. Jaico Publishing, Mumbai, 2017.
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