Gaya APA

Friends, B, ,, N, A. (2003). The Art of HRD ; People and Competencies ; Manusia dan kompentensi . Jakarta: Gramedia Pustaka Utama.

Gaya MLA

Friends, Boulter, ,, Nick, And. "The Art of HRD ; People and Competencies ; Manusia dan kompentensi". Jakarta: Gramedia Pustaka Utama, 2003. Teks (Text).