Gaya APA
Yeo, J, D.
(2013).
New Syllabus Mathematics Normal (Academic) 1 N(A)
.
Singapore:
Shinglee Publishers,.
Gaya MLA
Yeo, Joseph, Dkk..
"New Syllabus Mathematics Normal (Academic) 1 N(A)".
Singapore:
Shinglee Publishers,,
2013.
Text.