ANSA DEVELOP AND IMPROVE YOUR MATHEMATICAL LITERACY - BLOEMFONTEEN UES 2002 - 280 0 0 0 0 ISBN: 0-86886-650-4 Source: 2003-15 Subjects--Personal Names: CLARYSSE ELS Subjects--Topical Terms: NATURAL SCIENCES & MATHEMATICS LC Class. No.: QA 11.2 .K54