Priyana, J. (2008). Interlanguage: English for Senior High School Students XII Science and Social Study Programme. Pusat Perbukuan Depdiknas.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPriyana, Joko. Interlanguage: English for Senior High School Students XII Science and Social Study Programme. Pusat Perbukuan Depdiknas, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPriyana, Joko. Interlanguage: English for Senior High School Students XII Science and Social Study Programme. Pusat Perbukuan Depdiknas, 2008.
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