Gaya APA
Weekes, C., Soemanto, N, B.
(1991).
Mengatasi Stress
.
Yogyakarta:
Kanisius.
Gaya MLA
Weekes, Claire., Soemanto, Nin, Bakdi.
"Mengatasi Stress".
Yogyakarta:
Kanisius,
1991.
Text.