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.