Gaya APA

Parera, J, D., Alexander, L. (1997). New Concept English: First Thing First (an Integrated Course For Beginners) . New York: Longman Inc..

Gaya MLA

Parera, J., Daniel., Alexander, L.G. "New Concept English: First Thing First (an Integrated Course For Beginners)". New York: Longman Inc., 1997. Text.