นักเรียน, สาว, หนังสือ, ปากกา, กระเป๋าเป้สะพายหลัง, ผู้ขอ, ศึกษา, การอบรม, สถาบัน
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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