APA (7th ed.) Citation

Suparman. (2019). Service Excellence. Graha Ilmu.

Chicago Style (17th ed.) Citation

Suparman. Service Excellence. Graha Ilmu, 2019.

MLA (8th ed.) Citation

Suparman. Service Excellence. Graha Ilmu, 2019.

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