Ashadi Zain 166 tip sales efektif / Seratus enam puluh enam sales efektif Ashadi Zain, Sharuddin Abdullah - Kuala Lumpur : PTS Professional Pub. , 2006 - xii, 314ms. ; 23cm. Bibliografi: ms. 313-314 ISBN: 9833585418 (kkt.) : RM30.00 Nat. Bib. No.: M06-9406 Subjects--Topical Terms: Sales personnelSales personnel--Training of Dewey Class. No.: 658.85