SURYADIPUTRA, W. (1992). Speaking upper-intermediate: Study guide.-- ed.1. UT LP3B and Oxford English.
Dyfyniad Arddull ChicagoSURYADIPUTRA, Wendy. Speaking Upper-intermediate: Study Guide.-- Ed.1. Jakarta: UT LP3B and Oxford English, 1992.
Dyfyniad MLASURYADIPUTRA, Wendy. Speaking Upper-intermediate: Study Guide.-- Ed.1. UT LP3B and Oxford English, 1992.
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