books by author
I A Potts
Edexcel IGCSE Mathematics A (Student Book 2 ) (Edexcel International GCSE)
Longman mathematics for IGCSE Book 1
GCSE Higher Mathematics Answer Book
Edexcel IGCSE Mathematics A (Student Book 1) (Edexcel International GCSE)
Longman Mathematics for IGCSE: Book 1: Bk. 1
Longman Mathematics for IGCSE: Book 2: Bk. 2
Edexcel IGCSE Mathematics A (Practice Book 2) (Edexcel International GCSE)