การศึกษา, หนังสือ, ห้องสมุด, การอ่าน, การเรียนรู้, วรรณกรรม, กอง, เนื้อไม้, เก่า, ชั้นวางหนังสือ, กระดาษ
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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