do supporting docs need to be notarized from singapore

[zain]

hi guys..aprreciate if someone could tell me if i need to get the documents such as birth cert, passport copies educational certs etc etc notarized or attested here in Singapore or can i just submit the photocopies. Doesn't say anywhere in my immigration guide that i need to get them notarized. I got all papers ready and planning to send them tomorrow...pls advise...

thanks..