Style de citation APA (7e éd.)

SURYADIPUTRA, W. (1992). Speaking upper-intermediate: Study guide.-- ed.1. UT LP3B and Oxford English.

Style de citation Chicago (17e éd.)

SURYADIPUTRA, Wendy. Speaking Upper-intermediate: Study Guide.-- Ed.1. Jakarta: UT LP3B and Oxford English, 1992.

Style de citation MLA (9e éd.)

SURYADIPUTRA, Wendy. Speaking Upper-intermediate: Study Guide.-- Ed.1. UT LP3B and Oxford English, 1992.