[RESOLVED] How To Set Records Order According To This Kind of Field?

[xboner]

So I want to sort my records according to tglabsen, in descending order. This field is in Varchar, I know I probably should set it as DATE, but DATE type gave me an error, so i changed it to varchar, and my database is running okay with it.
Here is one example of what the value of this field looks like :

31/07/2017

I tried :

"select * from absen where NIP='xxxxx' order by tglabsen desc"

But what happened is that the record was sorted according to the first 2 digit number in the value.

So, instead of setting value like 8/8/2017 on top, the program put 31/07/2017 on top. Because 31 is bigger than 8. Any idea to solve this? will it be better to change the tglabsen to DATE type?