...Decision Mathematics 1? Either a PDF of the book "Edexcel AS and A Level Modular Mathematics - Decision Mathematics 1"

or

A copy of "Edexcel AS and A Level Modular Mathematics - Decision Mathematics 1 Livetext"
(Which is kind of the Ebook version)

Not wanting to be an ass, but please save your preachey "buy it" remarks for someone else.

Thanks in advance