APA (7th ed.) Citation

Crocker, O. L. Gugus Kendali Mutu. Bumi Aksara.

Chicago Style (17th ed.) Citation

Crocker, Olga L. Gugus Kendali Mutu. Bumi Aksara.

MLA (8th ed.) Citation

Crocker, Olga L. Gugus Kendali Mutu. Bumi Aksara.

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