ปากกา, กระดาษ, บันทึก, สำนักงาน, เอกสาร, การเขียน, ธุรกิจ, ดินสอ, หน้า, ว่างเปล่า, งาน
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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