Gaya APA

Wijaya, J, A., Budi, I, S. (2007). Public speaking is easy: from fear to dare . Yogyakarta: ANDI.

Gaya MLA

Wijaya, Johanes, Ariffin., Budi, I., Setiawan,. "Public speaking is easy: from fear to dare". Yogyakarta: ANDI, 2007. .