Gaya APA

Verhoeven, L., Balkom, H, V. (2004). Classification of Developmental Language Disorders : Theoretical Issues and Clinical Implication . New Jersey: Nusa Indah.

Gaya MLA

Verhoeven, Ludo., Balkom, Hans, Van. "Classification of Developmental Language Disorders : Theoretical Issues and Clinical Implication". New Jersey: Nusa Indah, 2004. Text.