TOFI:
www.tofi.or.id

Mestakung:
www.mestakung.com

Surya Institute:
www.suryainstitute.org

Asian Science Camp 2008:
www.suryainstitute.org/asc2008

The First Step to Nobel Prize:
http://www.ifpan.edu.pl/firststep/

IPhO:
http://www.jyu.fi/kastdk/olympiads/

APhO:
www.apho.com

IJSO:
www.ijso-official.org

Fisika Asyik:
www.fisikaasyik.com