Sirait, C. B. (2010). The Power Of Public Speaking: Kiat Sukses Berbicara Di Depan Publik. Gramedia Pustaka Utama.
Chicago Style (17th ed.) CitationSirait, Charles Bonar. The Power Of Public Speaking: Kiat Sukses Berbicara Di Depan Publik. Gramedia Pustaka Utama, 2010.
MLA (8th ed.) CitationSirait, Charles Bonar. The Power Of Public Speaking: Kiat Sukses Berbicara Di Depan Publik. Gramedia Pustaka Utama, 2010.
Warning: These citations may not always be 100% accurate.