APA Style

Amos, J., Spenceley, A. (2004). Problem Solvers: Why Tease? . Yogyakarta: Penerbit kanisius.

MLA Style

Amos, Janine., Spenceley, Annabel. "Problem Solvers: Why Tease?". Yogyakarta: Penerbit kanisius, 2004. Text.