ผีเสื้อ, ปุ่ม, ออกแบบ, มัลติมีเดีย, ความคิดสร้างสรรค์, มีสีสัน, สีแดง, สีน้ำเงิน, กระดาษ, บทคัดย่อ
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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