กรง
Acknowledgements
Image source
https://pixabay.com/th/photos/%E0%B8%81%E0%B8%A3%E0%B8%87%E0%B8%99%E0%B8%81-%E0%B8%81%E0%B8%A3%E0%B8%87-%E0%B8%AB%E0%B8%99%E0%B9%89%E0%B8%B2%E0%B8%95%E0%B9%88%E0%B8%B2%E0%B8%87-%E0%B8%99%E0%B8%81-%E0%B8%A5%E0%B9%87%E0%B8%AD%E0%B8%81-402205/