Here is video tutorial about "How to use SUMIF"
I'm going to explain about how to use it in the table.
I used Microsoft Excel speak Khmer.

My Youtube Channel
https://goo.gl/4QBkFY

San Raksmey Facebook
https://goo.gl/tPn5g8

Follow us on Twetter
https://goo.gl/BvuoXp

Follow us on Google Plus
https://goo.gl/yGCLnb