Korea, Turkey and Valencia Street Circuit

Hi guys,
can anyone tell me where I can find the best versions of circuits of Korea, Turkey and Valencia Street?
Working links please.
Many thanks for your help!!!

korea yeongam track by KTC: [www.grandprixgames.org]
Istambul Park by Gildoorf and Prblanco:[f1virtual.blogspot.com]
Valencia street circuit by Prblanco and Gildoorf: [www.gp4db.com]

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