APA (7th ed.) Citation

Parengkuan, E. (2018). How Not to Give A Boring Speech. Gramedia Pustaka Utama.

Chicago Style (17th ed.) Citation

Parengkuan, Erwin. How Not to Give A Boring Speech. Gramedia Pustaka Utama, 2018.

MLA (8th ed.) Citation

Parengkuan, Erwin. How Not to Give A Boring Speech. Gramedia Pustaka Utama, 2018.

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