สีม่วง, สีชมพู, สีเหลือง, พื้นหลัง, มีสีสัน, ลาด, บทคัดย่อ, พื้นหลังสีม่วง, บทคัดย่อม่วง
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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