LINK DOWNLOAD BỘ SÁCH ENGLISH VOCABULARY IN USE

MỨC ADVANCED
  http://vk.com/doc6100448_160122900?hash=dd8b1add7dd6c35e28&dl=28aabb49a7217e1962

MỨC PRE-INTERMEDIATE & INTERMEDIATE
http://www.maltassist.org/English_Vocabulary_in_Use_Pre_Intermediate.pdf