Should be "Who live on the border of Jakarta"
Also "on the border of" "at the border" or even "within the border" could work as well.
"near the border of Jakarta" should also be acceptable
The prefix pe- and the affix -an are used to form nouns
Perbatasan means border
The root is batas (verb) which means to limit
Other words with this root: keterbatasan (limitations), batasan (boundary)
The exercise filled in ALL the words for me instead of some. Did anyone else experience this?
"I sent a letter to children living at the edge of Jakarta" should be accepted