APA Style

Harris, M. et al (2012). New Challenges: Students' Book3 (cet. 5). New York: Pearson Longman Asia ELT.

MLA Style

Harris, Michael. et al. "New Challenges: Students' Book3". cet. 5 New York: Pearson Longman Asia ELT, 2012. Buku SMP Athalia.