Gaya APA

Yeo, D, J. et al (2016). New Syllabus Mathematics 4 7th Edition (7th Edition, 2016). Singapore: Shinglee Publishers PTE LTD.

Gaya MLA

Yeo, Dr, Joseph. et al. "New Syllabus Mathematics 4 7th Edition". 7th Edition, 2016 Singapore: Shinglee Publishers PTE LTD, 2016. Text.