The Student Room Group
Reply 1
i need a book where all the formulae needed for A level further math are included. is there such a book published?

Not that I know off. If you do edexcel, then the heineman revision books are good (you have to buy one for each module but think they're only £4 - cheaper if you buy via school) and they include every single chapter covered with a summary, worked examples and revision exercises.
Reply 2
Actually, why not just use the Edexcel formulae booklet? Downloadable from this page (see the two Mathematical Formulae and Statistical Tables near the bottom).

There is a lot of stuff in there though that you won't need, so revision guides will be more specific.