SURYADIPUTRA, W. (1992). Speaking upper-intermediate: Study guide.-- ed.1. UT LP3B and Oxford English.
芝加哥风格引文SURYADIPUTRA, Wendy. Speaking Upper-intermediate: Study Guide.-- Ed.1. Jakarta: UT LP3B and Oxford English, 1992.
MLA引文SURYADIPUTRA, Wendy. Speaking Upper-intermediate: Study Guide.-- Ed.1. UT LP3B and Oxford English, 1992.
警告：这些引文格式不一定是100％准确.