Gaya APA

Hero, S, Z, T., SPS, K, P, H. (2012). Spiritual Problem Solving (Cet. 3). Yogyakarta: Pro-U Media.

Gaya MLA

Hero, Solikhin, Zero, To., SPS, Kang, Puji, Hartono,. "Spiritual Problem Solving". Cet. 3 Yogyakarta: Pro-U Media, 2012. Text.