Jasa Ungguh Muliawan. (2018). Focus On English Junior High School (cetakan I.). Yogyakarta: Gava Media.
Chicago Style CitationJasa Ungguh Muliawan. Focus On English Junior High School. cetakan I. Yogyakarta: Gava Media, 2018.
MLA CitationJasa Ungguh Muliawan. Focus On English Junior High School. cetakan I. Yogyakarta: Gava Media, 2018.
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