APA (7th ed.) Citation

Winkel, W. (1987). Psikologi Pengajaran/ W.S. Winkel. Jakarta: Gramedia.

Chicago Style (17th ed.) Citation

Winkel, W.S. Psikologi Pengajaran/ W.S. Winkel. Jakarta: Gramedia, 1987.

MLA (8th ed.) Citation

Winkel, W.S. Psikologi Pengajaran/ W.S. Winkel. Jakarta: Gramedia, 1987.

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