หนังสือ, กอง, วรรณกรรม, ความรู้, การศึกษา, โรงเรียน, การอ่าน, ห้องสมุด, กองหนังสือ, ตำรา, อ่านหนังสือ
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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