APA
Lee L. Y. &. L. P. B., Lee L. Y. &. L. P. B., . (2011). Chemistry For Spm. Singapore: Cengage.
Chicago
Lee Loh Yew & Lee Poh Bee, Lee Loh Yew & Lee Poh Bee, . 2011. Chemistry For Spm. Singapore: Cengage.
Harvard
Lee L. Y. &. L. P. B., Lee L. Y. &. L. P. B., . (2011). Chemistry For Spm. Singapore: Cengage.
MLA
Lee Loh Yew & Lee Poh Bee, Lee Loh Yew & Lee Poh Bee, . Chemistry For Spm. Singapore: Cengage. 2011.