Gaya APA
Barton, G. (2016).
Biografi Gus Dur: the authorized biography of Abdurrahman Wahid. (Cet. 1.).
Yogyakarta :
Saufa.
Gaya MLA
Barton, Greg.
"Biografi Gus Dur: the authorized biography of Abdurrahman Wahid.".
Cet. 1.
Yogyakarta :
Saufa,
2016.
Buku.