Gaya APA

Astuti, N. (2005). Diagnosing foreign language proficiency : the interface between learning and assessment (Cet. 1). Tubingen :: Continuum.

Gaya MLA

Astuti, Nelly. "Diagnosing foreign language proficiency : the interface between learning and assessment". Cet. 1 Tubingen :: Continuum, 2005. Text.