Business Opportunities : Teacher"s book with photocopiable progress tests / Phillips, Anna Phillips, Terry ... – New York : Oxford university, 2004. - 101 p. . . – 0 19 452029 3
Basic Technical English : teacher"s book / Comfort, Jeremy Hick, Steve, Savage, Allan ... – New York : Oxford University Press, 1996. - 99 p., picture; . . – 0-19-457383-4 : 1340 t.