Gaya APA
Self management series ( IF YOU WANT TOBE RICH AND HAPPY MAXIMIZE YOUR STRENGTH). (2003).
JAKARTA:
PT.Alex media komputindo.
Gaya MLA
Self management series ( IF YOU WANT TOBE RICH AND HAPPY MAXIMIZE YOUR STRENGTH).
.
JAKARTA:
PT.Alex media komputindo,
2003.
DIORAMA.