Gaya APA

Mulyasa, E., Adam, M. (1980). Question and answer:graded oral comprehension exercises/L.G. Alexander (New edition). Jakarta: Kanisius.

Gaya MLA

Mulyasa, E.., Adam, Muhammad. "Question and answer:graded oral comprehension exercises/L.G. Alexander". New edition Jakarta: Kanisius, 1980. .