Work-study programs require a student ID card, as long as it does not exceed 120 (or 160) per month. . . . What is incomplete is that you have a proper job, but you are still willing to work part-time. His salary base is much higher than that of work-study program. . . . And there is a working time limit, 1 4 hours a day. . . . Not all of them are rarely found in shops. . . Because of the high cost. . . . .