Welcome!
I'm trying to contribute to the Indonesian Wikipedia (idwiki) by translating articles on mathematics and computer science topics. One of the reasons, English Wikipedia (enwiki) has helped me to understand lots of things, especially those two topics. Unfortunately, not everyone has the opportunity to learn English. Being able to bring knowledge from enwiki into idwiki is, in a way, my way of contributing back to Wikipedia.
More detailed information about myself can be seen in id:User:kekavigi.