Gaya APA

m.pd, D, E, S, S. (2011). Testing English : formative and summative approaches to English assessment . New York: continuum international publishing group.

Gaya MLA

m.pd, Dra., Ella, Sulhah, S,. "Testing English : formative and summative approaches to English assessment". New York: continuum international publishing group, 2011. Text.