Gaya APA
Barton, G. (2017).
Biografi Gus Dur =the authorized biography of Abdurrahman Wahid/ Greg Barton (Cet.1).
Yogyakarta:
Mahabbah.
Gaya MLA
Barton, Greg.
"Biografi Gus Dur =the authorized biography of Abdurrahman Wahid/ Greg Barton".
Cet.1
Yogyakarta:
Mahabbah,
2017.
.