SURYADIPUTRA, W. (1992). Writing upper - intermediate: Study guide. LP3B UT and Oxford english.
Chicago Style (17th ed.) CitationSURYADIPUTRA, Wendy. Writing Upper - Intermediate: Study Guide. Jakarta: LP3B UT and Oxford english, 1992.
MLA引文SURYADIPUTRA, Wendy. Writing Upper - Intermediate: Study Guide. LP3B UT and Oxford english, 1992.
警告：這些引文格式不一定是100％准確.