A notarized hard-copy sent directly from the applicant, via mail or courier (Examples of people who may be able to notarize documents: Bank, Lawyer, Notary Public, Paralegal, Real Estate Office, Embassy)
An E-Mailed copy from the applicant that can be verified online.
An original from the applicant (if you wish for your original documents be returned, please provide a postage paid courier envelope so documents can be sent back and tracked).
An E-Mailed or Mailed copy from the institution.