APA Style

Tracy, B., Wanayu, W. (2004). Psychology Of selling : How to Sell More, Easier, and Faster Than You Ever Thought Possible . Jakarta: Bhuana Ilmu Populer.

MLA Style

Tracy, Brian.., Wanayu, Windayati. "Psychology Of selling : How to Sell More, Easier, and Faster Than You Ever Thought Possible". Jakarta: Bhuana Ilmu Populer, 2004. Text.