in my knowledge,,,,yes u need visa
and u will apply to emirates airlines near to lulu hypermarket,cost 200QR i think,,but take note,,,not all they r giving visa,,,theres a salary bracket that at least ur earning 4500 up..and it take 3 working days to get the visa,
one more option,why u not try to call emirates and ask there requirements and what is there working hours to avoiding wasting time,,,
so goodluck and enjoy ur vacay in dubai!!!!