Room or studio for 4-5 month stay in Thessaloniki

I am studying physics, I love doing sports in the spare time and to meet nice people.

For my erasmus stay in Thessaloniki I am looking for a room in a shared flat or a studio that is fully furnished (bed, table, toilet, shower, wash basin and maybe a stove) and with access to the internet. The price in total with all bills (electricity, water, heat, internet) should be below €250,-.