Gaya APA

Hart, G, B., Jakeman, V. (2016). Cambridge English: Complete IELTS bands 4-5 student's book without answers . United Kingdom: Cambridge University Press.

Gaya MLA

Hart, Guy, Brook., Jakeman, Vanessa. "Cambridge English: Complete IELTS bands 4-5 student's book without answers". United Kingdom: Cambridge University Press, 2016. Text.