ตัวเลข, ส่วนบุคคล, ครึ่งวงกลม, สี่เหลี่ยม, มีสีสัน, สี, ลอย, บทคัดย่อ, เป็นมุมฉาก, ดู, ฟอร์ม
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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