Gaya APA
Knaap, G., Soerjoatmodjo, Y. (1999).
Cephas, Yogyakarta photography in the service of the Sultan .
Leiden:
KITLV Press.
Gaya MLA
Knaap, Gerrit., Soerjoatmodjo, Yudhi.
"Cephas, Yogyakarta photography in the service of the Sultan".
Leiden:
KITLV Press,
1999.
Text.