Gaya APA
Proctor, H, R, P, W, J.
(2013).
The Essentials of GCSE EDEXCEL Maths
.
Lancashire:
Lonsdale.
Gaya MLA
Proctor, H, Rees, P, Wharton, J.
"The Essentials of GCSE EDEXCEL Maths".
Lancashire:
Lonsdale,
2013.
.