-Advanced - Vocabulary In Context, Phrasal Verbs
-Business Letters for Busy People;OZELLİKLE İNGİLİZCE YAZISMALAR İLE İLGİLENENLER BU KİTABI MUTLAKA EDİNMELİ
-Business Vocabulary in Use;İS İNCİLİZCESİNDE KELİME BİLGİSİNİ GELİSTİRMEK İSTEYENLER İCİN.
-Cambridge English For Business...