UMGUM.COM (лучше) 

Personal certificates ( Сертификаты. )

8 декабря 2010  (обновлено 3 сентября 2014)

Certificate Introduction Oracle9i: SQL:

размер: 320 400 640 800 1024 1280
Certificate Introduction Oracle9i: SQL.
Certificate Introduction Oracle9i: SQL.

Certificate Oracle9i Database: New Features for Administrators:

Certificate Oracle9i Database: New Features for Administrators.
Certificate Oracle9i Database: New Features for Administrators.

Certificate of Training: Fundamentals of the UNIX System:

Certificate of Training: Fundamentals of the UNIX System.
Certificate of Training: Fundamentals of the UNIX System.

Certificate: Fundamentals of Network Security:

Certificate: Fundamentals of Network Security.
Certificate: Fundamentals of Network Security.