Riyanto, S., Handhini, A, C.(2016).TOEIC PREPARATION: Test of English for International Communication .Yogyakarta:C.V Andi Offset.
Gaya MLA
Riyanto, Slamet., Handhini, Anna, Christina."TOEIC PREPARATION: Test of English for International Communication".Yogyakarta:C.V Andi Offset,2016.CD-ROM.