APA Style
Choong, R, ;, T, P, C. (2005).
thinking mathematics 4B, Buku Kerja Sekolah Dasar Kelas IV .
:
Esis, Erlangga.
MLA Style
Choong, Raymond, ;, Teh,, Pick, Ching.
"thinking mathematics 4B, Buku Kerja Sekolah Dasar Kelas IV".
:
Esis, Erlangga,
2005.
BOOK.