OUR HOME STUDY CENTER Our Home Study Center is a product of our ETCB ministry and was the first business started by Kelly and Angela Hilderbrand in August of 2000. The first Foursquare church in Bangkok was started out of the ministry of this school. Presently, we have over 700 students studying with us each week and we are constantly in need of people to come and witness to these students through the teaching of the English Language.