Don't have Telegram yet? Try it now!
https://greedisgoods.com/%e0%b8%84%e0%b9%88%e0%b8%b2-sd-%e0%b8%84%e0%b8%b7%e0%b8%ad-%e0%b8%84%e0%b9%88%e0%b8%b2%e0%b9%80%e0%b8%9a%e0%b8%b5%e0%b9%88%e0%b8%a2%e0%b8%87%e0%b9%80%e0%b8%9a%e0%b8%99%e0%b8%a1%e0%b8%b2%e0%b8%95/
ค่า SD คือ อะไร? วิธี หา SD หรือ ส่วนเบี่ยงเบนมาตรฐาน