APA Style

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

MLA Style

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