If you are a student, ask from the authorised teacher. If you are a teacher, go on MEBBIS system to get EBA password. You can watch the instructional video to learn how to get a password via the link below. If you are a teacher in a private high school, you can get your EBA password with your E-Okul password by following the instructions on the video.
Click to watch the video on "Getting Passwords for Teachers".