Gaya APA

Briggs, J. (2002). Theory Workbook Science in Focus Chemistry For Secondary 5 Normal (Academic) . Singapore: Pearson Education South Asia Pte Ltd.

Gaya MLA

Briggs, JGR. "Theory Workbook Science in Focus Chemistry For Secondary 5 Normal (Academic)". Singapore: Pearson Education South Asia Pte Ltd, 2002. Text.