หนังสือ, ชาย, ห้องสมุด, สาธารณะ, เสื้อเชิ้ต, มลพิษ, อุดอู้, แว่นตา, ผู้ลากมากดี, นักวิชาการ, โรงเรียน
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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