The final k in tidak/adik/kakak
It seems that the final k is not to be pronounced in the above words. However, some Duolingo forum-ers tend to disagree.
1- Duolingo audio doesn't seem to have the final k sound. Is there an error in robotic audio or k is not to be pronounced?
2-Indonesian Pod 101 also doesn't pronounce final k.
3- Learn Real Bahasa (Youtube channel of Zacky) also specifically doesn't pronounce the final k.
So which is it, teman-teman?