SURYADIPUTRA, W. (1992). Writing upper - intermediate: Study guide. LP3B UT and Oxford english.
Chicago-čujuhus (17. p.)SURYADIPUTRA, Wendy. Writing Upper - Intermediate: Study Guide. Jakarta: LP3B UT and Oxford english, 1992.
MLA-čujuhus (9. p.)SURYADIPUTRA, Wendy. Writing Upper - Intermediate: Study Guide. LP3B UT and Oxford english, 1992.
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