Hi Larry, "Tarung Derajat" is basically full contact kickboxing with light gloves. Apparently no throws or kicks below the belt allowed, so matches tend to look like bad kung fu movies. A little swipe at Shodokan competition...
I can vouch for the Yoshinkan dojo in Bandung; Mark's a good guy. I'm also open to being tossed on my butt by a Shodothug if your student is down around these parts.