APA Style

Hutabarat, Herdy. (2019). The Three Hats of Leadership . Yogyakarta: Andi Penerbit.

Chicago Style

Hutabarat, Herdy. The Three Hats of Leadership. Yogyakarta: Andi Penerbit, 2019. Text.

MLA Style

Hutabarat, Herdy. The Three Hats of Leadership. Yogyakarta: Andi Penerbit, 2019. Text.

Turabian Style

Hutabarat, Herdy. The Three Hats of Leadership. Yogyakarta: Andi Penerbit, 2019. Print.