Gaya APA

Vries, J, D. (2009). Emotional healing:Mengendalikan emosi & Kecemasan/Jan De Vries . Surabaya: Selasar Publishing.

Gaya MLA

Vries, Jan, De. "Emotional healing:Mengendalikan emosi & Kecemasan/Jan De Vries". Surabaya: Selasar Publishing, 2009. Text.