Priyana, J. (2008). Interlanguage: English for Senior High School Students XII Science and Social Study Programme. Pusat Perbukuan Depdiknas.
Chicago-viite (17. p.)Priyana, Joko. Interlanguage: English for Senior High School Students XII Science and Social Study Programme. Pusat Perbukuan Depdiknas, 2008.
MLA-viite (8. p.)Priyana, Joko. Interlanguage: English for Senior High School Students XII Science and Social Study Programme. Pusat Perbukuan Depdiknas, 2008.
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