คิด
Acknowledgements
Image source
https://pixabay.com/th/photos/%E0%B8%84%E0%B8%B4%E0%B8%94%E0%B8%A7%E0%B9%88%E0%B8%B2-%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%97%E0%B8%B3%E0%B8%87%E0%B8%B2%E0%B8%99%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B8%84%E0%B8%B4%E0%B8%94-%E0%B8%84%E0%B8%99-%E0%B9%83%E0%B8%9A%E0%B8%AB%E0%B8%99%E0%B9%89%E0%B8%B2-272677/