Gaya APA

Eyal, Nir. (2014). Hooked: How Build Habit-Forming Product (-). : Portofolio Penguin.

Gaya Chicago

Eyal, Nir. Hooked: How Build Habit-Forming Product. - : Portofolio Penguin, 2014. Text.

Gaya MLA

Eyal, Nir. Hooked: How Build Habit-Forming Product. - : Portofolio Penguin, 2014. Text.

Gaya Turabian

Eyal, Nir. Hooked: How Build Habit-Forming Product. - : Portofolio Penguin, 2014. Print.