APA (7th ed.) Citation

Farkas, P. S., Knapp, A. B., & Andrianto, P. (1990). Gastroenterologi. Widya Medika.

Chicago Style (17th ed.) Citation

Farkas, Paul S., Albert B. Knapp, and Petrus Andrianto. Gastroenterologi. Widya Medika, 1990.

MLA (9th ed.) Citation

Farkas, Paul S., et al. Gastroenterologi. Widya Medika, 1990.