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pref.okinawa.jp
www3.pref.okinawa.jp
Military Base Affairs Division. "FAC 6064 那覇港湾施設" [FAC 6064 Naha Port Facility] (in Japanese). Naha: Okinawa Prefecture. Archived from the original on September 27, 2011. Retrieved January 1, 2011.
web.archive.org
Military Base Affairs Division. "FAC 6064 那覇港湾施設" [FAC 6064 Naha Port Facility] (in Japanese). Naha: Okinawa Prefecture. Archived from the original on September 27, 2011. Retrieved January 1, 2011.