นักเรียน, การศึกษา, การอ่าน, ความรู้, ศึกษา, หนังสือ, วรรณกรรม, ตำราเรียน, เด็กผู้ชาย
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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