Cita APA (7th ed.)

Ardiansyah. (2004). Let's speak english nurse. EGC.

Cita Chicago (17th ed.)

Ardiansyah. Let's Speak English Nurse. EGC, 2004.

Cita MLA (9th ed.)

Ardiansyah. Let's Speak English Nurse. EGC, 2004.