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Gaya APA

Azwar, S. (2015). Reliabilitas dan Validitas Edisi 4 . Yogyakarta: Yogyakarta: Pustaka Pelajar.

Gaya MLA

Azwar, Saifuddin. "Reliabilitas dan Validitas Edisi 4". Yogyakarta: Yogyakarta: Pustaka Pelajar, 2015. Text.