AL- Bostanji, Ghaleb. Business Letters / Ghaleb AL- Bostanji. - Riyadh : Outher, 2011. - 200 p. ; 24 cm. includes Biblographay and Index. ISBN: 9786038052136 Subjects--Topical Terms: Business Letters. Business communication. Dewey Class. No.: 651.75 / B G B