University of Cambridge. (2014). Cambridge key English test 7 with answers: Authentic examination papers from Cambridge English language assessment. Việt Nam: Fahasa Printing Factory.
Styl cytowania ChicagoUniversity of Cambridge. Cambridge Key English Test 7 With Answers: Authentic Examination Papers From Cambridge English Language Assessment. Việt Nam: Fahasa Printing Factory, 2014.
Styl cytowania MLAUniversity of Cambridge. Cambridge Key English Test 7 With Answers: Authentic Examination Papers From Cambridge English Language Assessment. Việt Nam: Fahasa Printing Factory, 2014.
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