Thammasat Business School Welcoming the new semester with improvements and extended service hours for computer rooms, working rooms, and reading rooms. Both the Tha Prachan and Rangsit Campus with van service TBS (Tha Prachan) â MRT (Sanam Chai). TBS Building Rangsit Campus Computer room, 3rd floor Monday â Friday 8:00 â 18:00 Saturday 8:00 âRead more