Hi every one, I am Rudianto Sitanggang from Indonesia. At the moment i am looking for an MBA Program in US. Unfortunately, my grade in Calculus is D and the GPA is 3.01 out of scale 4. Do I still have a chance to apply for business school in US?

As should be clear from at least a precursory browsing of these forums, GPA is hardly the end-all be-all of MBA applications. These other factors account for as much, if not more than GPA:

Number of years and overall quality of work experience. Although you receive a significant amount of leverage for having at least two years of work experience, managerial and business experience helps you out much more in the long run.

GMAT score. While many people on these boards disagree with the intent and usage of the GMAT test, unless you are applying for a shady school in some git's living room in London, you're going to need a solid GMAT score.

Your application itself. Exceptional care is needed when preparing your essays. Here you can promote your achievements, and to some degree, justify your shortcomings.

I think it is probably a good idea to apply for more rather than one. The more you apply, the more offers you will get. In terms of GPA, you cannot change it anyway, why don't you get higher GMAT? If you have a lot of experience, that would also help you a lot. Have a look at George Washington University school of business (GWSB).