According to data from the 20 students work part-time. And the students study the 20 people of English major, do questionnaire. People who work part-time มีผลการเรียน reduced 8 people grades up. In the secret 12 people andAccording to data from the 20 students work part-time. And the students study the 20 people of English major, do questionnaire. People who work part-time มีผลการเรียน reduced 8 people grades up. In the secret 12 people and
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