Gaya APA
Ed, T, K, S, B, D. (1979).
Additional Mathematics : New Syllabus (8th Edition).
Singapore:
Shinglee Publishers pte ldk.
Gaya MLA
Ed, Teh, Keng, Seng, BSc,, Dip.
"Additional Mathematics : New Syllabus".
8th Edition
Singapore:
Shinglee Publishers pte ldk,
1979.
Text.