"on the border," "along the border," or "at the border."
It's fixed now.
All three options are accepted now : at/on/along.
"At the border" for a building.
Makasih Mas James.
Agree with James and Volumax. Definitely not "in".
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)