Derek Holton

Number Theory

By Derek Holton

International Mathematical Olympiad Problems: Bk. 1

By Derek Holton

Geometry: Bk. 1

By Derek Holton

How to

By Derek Holton

Proof

By Derek Holton

Graph Theory

By Derek Holton

Geometry: Bk. 2

By Derek Holton

Geometry: Bk. 3

By Derek Holton

Combinatorics: Bk. 2

By Derek Holton

Combinatorics: Bk. 1

By Derek Holton

Mathematics problems via Down-Under

By Derek Holton

Lighting Mathematical Fires: Secondary Teacher and Student Resource

By Derek Holton