Gaya APA

Giblin, L, T., Purnomo, Y, D, H. (2001). Skill With People . Jakarta: PT Gamedia Pustaka Utama.

Gaya MLA

Giblin, Leslie, T.., Purnomo, Y., Dwi, Helly. "Skill With People". Jakarta: PT Gamedia Pustaka Utama, 2001. Hibah.