APA (7th ed.) Citation

Wong P. W. & Wong Sin Mong. (2013). Additional mathematics SPM. Oxford Fajar Sdn. Bhd..

Chicago Style (17th ed.) Citation

Wong P. W. and Wong Sin Mong. Additional Mathematics SPM. Shah Alam: Oxford Fajar Sdn. Bhd., 2013.

MLA (9th ed.) Citation

Wong P. W. and Wong Sin Mong. Additional Mathematics SPM. Oxford Fajar Sdn. Bhd., 2013.