หญิง, การเขียน, ตาราง, งาน, หนังสือ, กระดาษ, การศึกษา, การเรียนรู้, นักเรียน, ศึกษา, หนุ่มสาว
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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