Ng, Cheryl S.H. A-level economics (9074) : 1980-1999 / Cheryl Ng S. H. - 7th ed. - Singapore : Dyna Publishers, 1997. - 568 p. ; 27 cm. ISBN: 9814039454 Subjects--Topical Terms: Economics--Examinations, questions, etc. Dewey Class. No.: 330.076 / NGC