Ղազարյան, Հասմիկ Զաքարի Brush up your English : Academic manual / H. Ghazaryan ; Ministry of Education and Science. National Polytechnic University of Armenia ; Խմբ.՝ Հ.Զ. Ղազարյան. - Yerevan : Chartaraget, 2015. - 228 pages ; 20 cm. - 42-8(075.8) (NLA) . ISBN: 9789939723013 Subjects--Topical Terms: English language--Handbooks Universal Decimal Class. No.: 42-8(075.8) (NLA)