Ülkeyi terk ettiğimde Emeklilik KITAS veya Emeklilik KITAP'ımın geçerliliği sona erer mi?

Hayır. Emekli KITAS ve Emeklilik KİTAP are multiple-entry permits, meaning you can enter and leave Indonesia as often as you want during the validity period.

Your KITAS/KITAP will değil expire automatically just because you travel abroad.
It only expires on its official end date, unless cancelled intentionally (e.g., through an EPO).