20041117030200.0 0915-3403 Ōita-ken Onsen'netsu Riyō Kaki Engei Shikenjō kenkyū hōkoku Ōita-ken Onsen'netsu Riyō Kaki Engei Shikenjō kenkyū hōkoku 0915-3403 Japan Ōita-ken Onsen'netsu Riyō Kaki Engei Shikenjō kenkyū hōkoku. 0915-3403 Ōita-ken Onsen'netsu Riyō Kaki Engei Shikenjō kenkyū hōkoku. 0915-3403 0915-3403