Gaya APA

Usmara, U. (2009). Bundaryless Career for The 21st Century (Cet. 1). Yogyakarta: Amara Books.

Gaya MLA

Usmara, Usi. "Bundaryless Career for The 21st Century". Cet. 1 Yogyakarta: Amara Books, 2009. Text.