Gaya APA

m.pd, D, I, B. (2010). English as a lingua franca in higher education : a longitudinal study of classroom discourse . Berlin: walter de gruyter gmbh & co. k.

Gaya MLA

m.pd, Dr., Irwan, Baadilah,. "English as a lingua franca in higher education : a longitudinal study of classroom discourse". Berlin: walter de gruyter gmbh & co. k, 2010. Text.