Ruhnu Kàu-khu

Ruhnu Kàu-khu (Estonia-gí: Ruhnu vald) sī Estonia Kiōng-hô-kok Saare Koān ê chi̍t ê chng-kha chū-tī-thé. Chham-oa̍t Estonia ê chū-tī-thé Chham-khó Pang-bô͘:Saare Koān ê chū-tī-thé