Penggayaan APA

Language learning in business english interactive ep. 13-15. (s.a). s.l: .

Chicago Style

Language learning in business english interactive ep. 13-15. . s.l: , s.a. CD-ROM.

MLA Style

Language learning in business english interactive ep. 13-15. . s.l: , s.a. CD-ROM.

Turabian Style

Language learning in business english interactive ep. 13-15. s.l: , s.a. CD-ROM.