changes standard wording?

[Hisyam]

Hi Folks! Sorry for asking simple questions! I'm writing an artical using (i) class: article (AMS), (ii) Language: bahasa. I change these under Document Layout. The problem are when I select Abstract, I get RINGKASAN. What I really what is ABSTRAK. Second, when I select Biblography, I get PUSTAKA, but what I really whan is RUJUKAN. Can someone please show me how to redefine these.   Help are appreciated. Thanks!   Have a nice day.