Bilibinsky Koān

Bilibinsky Koān (Lō͘-se-a-gí: Билибинский район) sī Lō͘-se-a Liân-pang Chukotka Chū-tī-khu ê chi̍t ê koān (raion). Pang-bô͘:Chukotka Chū-tī-khu