APA Citation

(2009). www.gpd.co.id. Yogyakarta: Kanisius.

Chicago Style Citation

Www.gpd.co.id. Yogyakarta: Kanisius, 2009.

MLA Citation

Www.gpd.co.id. Yogyakarta: Kanisius, 2009.

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