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Gaya APA

M.B.A., D, R. (2010). Skala Pengukuran Variabel-Variable Penelitan . Indonesia: Penerbit Alfabeta.

Gaya MLA

M.B.A., Dr., Riduwan,. "Skala Pengukuran Variabel-Variable Penelitan". Indonesia: Penerbit Alfabeta, 2010. Text.