Gaya APA
Riyadi, , S.
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Widyaparwa: No. 50-52, Th. 1999
(
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Yogyakarta:
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Gaya MLA
Riyadi, , Slamet.
"Widyaparwa: No. 50-52, Th. 1999".
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Yogyakarta:
Balai Penelitian Bahasa,
1999.
Jurnal.