31 year old girl alone, looking for Accommodation in Oldenburg.

I am quite but friendly I speak english and spanish, I am an Engineer and doing a postgraduate program, I would like to share the apartment with other students who do not smoke. I do not like smoking, I  alone and will be at Olbenburg for 5 months, and I am looking for a furnished room, it might be shared with, shower, kitchen shared, access to internet.