บทคัดย่อ, แบบแผน, สีน้ำตาล, สีเขียว, ลากเส้น, พื้นหลัง, มืด, วุ่นวาย, ยุ่ง, รก, ออกแบบ
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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