How can I express shortly, that I use something for something?

Hi,

I mean for example the following:

-Valuation of bonds by present value approach/method
-Valuation of bonds with the help of present value approach/method
-Valuation of bonds using present value approach/method

What would be right and the most common?

Thanks

Those snippets, taken out of context, are not enough to clarify what you want to know, sorry.

it would be simply a name of a presentation

In that case I can’t help you as I don’t understand what you mean by ‘present value approach/method’.
Perhaps someone else will have more of an idea.