บทคัดย่อ, แบบแผน, สีชมพู, สีแดงม่วง, จุด, เส้น, แวดวง, มันเงา, โลหะ, สีเทา, เงิน
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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