Here is a Integration by Parts helpsheet I created and uploaded on Scribd. Integration by Parts is a really useful technique, in fact it is one of the two key integration techniques in H2 Maths. The other technique is Integration by Substitution.
Featured book:
The Humongous Book of Calculus Problems
This book is really “humongous”. If you need to source for practice problems for Calculus, this is a good place to start. 🙂