APA (7th ed.) Citation

RIDUWAN. (2011). Skala pengukuran variabel-variabel penelitian. Alfabeta.

Chicago Style (17th ed.) Citation

RIDUWAN. Skala Pengukuran Variabel-variabel Penelitian. Alfabeta, 2011.

MLA (9th ed.) Citation

RIDUWAN. Skala Pengukuran Variabel-variabel Penelitian. Alfabeta, 2011.

Warning: These citations may not always be 100% accurate.