Thank you, kucai!

Though, the Gazettes concern themselves mostly with A) the temporary reduction to 80 and B) setting the speed limits for certain sections of road.

What I am interested in, is the law that regulates the the speed limits when no signs are present. I think this would be “Perintah Had Laju Kebangsaan 1989”. The wikipedia article apparently links this as a source, but the source is now 404 Not Found.