Ibrahim, Imran Integrated science chemistry : a topical course assessment for lower secondary levels , based on the latest syllabus / Imram Ibrahim. - New ed. - Singapore : SAP Group Pte. and Mavis tutorial center, c2011. - 220 p. A20p. : ill. ; 26 cm. ISBN: 9789812479833 Subjects--Topical Terms: Chemistry--Examinations, questions, etc.