MBA: мда, мба, or мва?

[burnsinternet]

Long term hold, of course.

мда, мба, or мва? Which is correct?

мда (highest Google, Wiki support)
Yandex: 523
Google: about 2,360,000 for мда
Google: about 1,550,000 Russian pages for мда

Магистр делового администрирования (англ. Master of Business Administration, MBA),МДА

http://ru.wikipedia.org/wiki/%D0%9C%D0%B0%D0%B3%D0%B8%D1%81%D1%82%D1%80_%D0%B4%D0%B5%D0%BB%D0%BE%D0%B2%D0%BE%D0%B3%D0%BE_%D0%B0%D0%B4%D0%BC%D0%B8%D0%BD%D0%B8%D1%81%D1%82%D1%80%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F

мва (highest Yandex, football club?)
Yandex: 4006
Google: about 1,250,000 for мва
Google: about 1,140,000 Russian pages for мва

http://ru.wikipedia.org/wiki/%D0%9C%D0%92%D0%90-%D0%A4%D0%A1%D0%9D%D0%9A

мба
Yandex: 1656
Google: about 333,000 for мба.
Google: about 302,000 Russian pages for мба

http://ru.wikipedia.org/wiki/%D0%A3%D1%87%D0%B0%D1%81%D1%82%D0%BD%D0%B8%D0%BA:Tassadar/%D0%BA%D0%B8%D1%80%D0%B8%D1%87%D0%B7%D0%B8

[rofsjan]

I don't know none of these abbreviations.
I trust Wikipedia, so I consider мда a valid abbreviation.

[Rubber Duck]

I don't know none of these abbreviations.
I trust Wikipedia, so I consider мда a valid abbreviation.

Too much faith in Wikipedia can be a very dangerous thing!

[filmlion]

the MBA term in Russian is mostly used as МБА. Not sure about other 2 abbreviations.

[burnsinternet]

I have seen all three used on Russian sites, so I bagged what I could.