Gaya APA
Briggs, J. (2004).
Science In Focus Chemistry For Secondary 5 Normal (Academic) .
Singapore:
Pearson Education South Asia Pte Ltd.
Gaya MLA
Briggs, JGR.
"Science In Focus Chemistry For Secondary 5 Normal (Academic)".
Singapore:
Pearson Education South Asia Pte Ltd,
2004.
Text.