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Abraham, Amit. (2004). Personality Development Through Positive Thinking (Cetakan Pertama). Jogjakarta: Diglossia.

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Abraham, Amit. Personality Development Through Positive Thinking. Cetakan Pertama Jogjakarta: Diglossia, 2004. Text.

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Abraham, Amit. Personality Development Through Positive Thinking. Cetakan Pertama Jogjakarta: Diglossia, 2004. Text.

Gaya Turabian

Abraham, Amit. Personality Development Through Positive Thinking. Cetakan Pertama Jogjakarta: Diglossia, 2004. Print.