Hong, Tay Choon New mathematics counts for secondary, 4 normal (academics) / Tay Choon Hong, Mark Ridding Ton - Singapore Person Education 2003 - x, 356p. : ill. 24cm 356 ISBN: 9789810191641 Subjects--Topical Terms: Mathematics LC Class. No.: QA11.2 .H66 2003 Dewey Class. No.: QA11.2 .H66 2003 National Library of Medicine Call No.: QA11.2 .H66 2003