From big c turn left, go straight, then path right and go straight until สัญาณจราจร lights, then turn left, go straight on this road, so the school will be on your left.
Exit C, turn left at the next turn right. Go straight through the traffic signal light, turn left. Straight on along this road. The schools will be on the left
Out of the big turn left and U-turn right. Go straight until the traffic light signal, then turn left. Go straight along this road. The school is on the left.