Which island in insular southeast asia is known as as a mini-continent?

Borneo although is called an island but is actually a mini continent as this makes the third largest Island in the whole world and he largest in Asia. The island is such  big piece of land that three countries claim its political rights which are Brunei, Malaysia and Indonesia, the last holding the largest part.

honestly i love the walking dead, mainly the quotes. “well, pardon me young man, excuse the [insert bad word here] out of my gosh darn french, but did you just threaten me? ” sksk (of course it's not the exact words)