Gaya APA

Prihantoro, . (2013). The english sound : a pronounciatin practice book/Prihantoro . Curup: Lp2 Stain Curup.

Gaya MLA

Prihantoro, . "The english sound : a pronounciatin practice book/Prihantoro". Curup: Lp2 Stain Curup, 2013. Text.