Gaya APA

Widodo, K. (2013). Proceeding international seminar and workshop hydrography, Batam, island 27-29 August 2013 . Bogor: Badan Infomasi Geospasial.

Gaya MLA

Widodo, Kusumo. "Proceeding international seminar and workshop hydrography, Batam, island 27-29 August 2013". Bogor: Badan Infomasi Geospasial, 2013. Text.