APA (7th ed.) Citation

Hojanto, O. (2018). Public Speaking Mastery In Action. Gramedia Pustaka Utama (GPU).

Chicago Style (17th ed.) Citation

Hojanto, Ongky. Public Speaking Mastery In Action. Gramedia Pustaka Utama (GPU), 2018.

MLA (8th ed.) Citation

Hojanto, Ongky. Public Speaking Mastery In Action. Gramedia Pustaka Utama (GPU), 2018.

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