Gaya APA

dkk, D, J, Y. (1992). New Syllabus Mathematics 7th Edition 4 (Workbook) . Singapore: Shinglee Publishers PTE LTD.

Gaya MLA

dkk, Dr, Joseph, Yeo,. "New Syllabus Mathematics 7th Edition 4 (Workbook)". Singapore: Shinglee Publishers PTE LTD, 1992. Text.