What are you talking?
NE and Singapore and Malaysia are similar in topography?
No they are not.
Only, the people of these places have similar features - mongoloids.
.
The...
more... NE region is a hilly region - major parts. Whereas Singapore definitely is not.
Seriously arguing just because the article is about SCR, you are talking unrelated stuff. And also who said tourism should be to certain places only? It can be anywhere.