APA (7th ed.) Citation

Puryani & Ristono, A. (2012). Penelitian operasional. Graha Ilmu.

Chicago Style (17th ed.) Citation

Puryani and Agus Ristono. Penelitian Operasional. Graha Ilmu, 2012.

MLA (8th ed.) Citation

Puryani and Agus Ristono. Penelitian Operasional. Graha Ilmu, 2012.

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