Using SUMIF Function in MS Excel, ប្រើរូបមន្ត SUMIF, បូកមានលក្ខណ្ធ, SUMIF speak Khmer

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