รหัส U777D เป็นส่วนหนึ่งของมาตรฐานระดับสากล

https://www.scribd.com/document/837054643/U777D-%E0%B9%80%E0%B8%A7-%E0%B8%9A%E0%B8%95%E0%B8%A3%E0%B8%87%E0%B9%84%E0%B8%A1-%E0%B8%9C-%E0%B8%B2%E0%B8%99%E0%B9%80%E0%B8%AD%E0%B9%80%E0%B8%A2-%E0%B8%99%E0%B8%95-%E0%B8%97%E0%B8%B3%E0%B9%84%E0%B8%A1%E0%B8%96%E0%B8%B6%E0%B8%87%E0%B9%80%E0%B8%9B-%E0%B8%99%E0%B8%95%E0%B8%B1%E0%B8%A7%E0%B9%80%E0%B8%A5%E0%B8%B7%E0%B8%AD%E0%B8%81%E0%B8%97%E0%B8%B5-%E0%B8%94%E0%B8%B5%E0%B8%97%E0%B8%B5-%E0%B8%AA%E0%B8%B8%E0%B8%94%E0%B8%AA%E0%B8%B3%E0%B8%AB%E0%B8%A3%E0%B8%B1%E0%B8%9A%E0%B8%99%E0%B8%B1%E0%B8%81%E0%B8%9E%E0%B8%99%E0%B8%B1%E0%B8%99-188097

รหัส U777D เป็นส่วนหนึ่งของมาตรฐานระดับสากล