It depends from which country you come from if you need a visa or not. I believe your working friend has nothing to do with it unless he "must" supply you with a guarantee e.g. to pay for your expenses etc.
loopback
2006-09-09 05:59:03 UTC
There's a link that may provide some help. Cheers!
http://www.learn4good.com/travel/swz_visa.htm
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