Hi my name is Aditya Herwanda Riswan, you can call me as sam steven or adit, 12 April 1997 is my birthday and Sidoarjo is the place that i was born exactly in wonoayu district. i love pla badmintoon and i used to play with my friends in the yard not far from my house. i was graduated in senior High School wachid hasyim 2 taman,  i got a lot of experience in using computer and other application which realted to my passion. fortunately in the University, especially my major, English Education Teacher Department is useful, like in CALL course, there are a lot of application that important for teaching learning process which help me as a teacher.