Gaya APA

Butler-Bowdon, T., Subekti, , R, C, . (2005). 50 Self-Help Classics . : Bhuana Ilmu Populer.Jakarta.

Gaya MLA

Butler-Bowdon, Tom., Subekti, , Rachma, Christiani, . "50 Self-Help Classics". : Bhuana Ilmu Populer.Jakarta, 2005. Koleksi Elektronik.