Gaya APA
Chia, N, K, H., Kuan, I, A, G, T, N, I, B, F, H. (2010).
Disruptive behavioural disorders .
Singapore:
.
Gaya MLA
Chia, Noel, Kok, Hwee., Kuan, I., Angie, Gek, Tee, Ng, II., Betty, Fui, Ha.
"Disruptive behavioural disorders".
Singapore:
,
2010.
.