I feel, my friends stemians in Aceh, still remember the snacks of Asam Kana. Now not all kiosks (kiosks) sell kana acid, it can be said this kind of jananan children have started hard to find.
However, when I read about Kana Kana, bukalapak.com sells this type of culinary Aceh.
When I was elementary school (SD), Kana Acid is often used as food in school, most delicious Kana Acid mixed with brand crackers medan jaya, hahaha.