About TADATOMO KEISHI
About 龍谷大学政策学部
About 水資源・環境研究(Web)
About Okinawa prefecture
About island
About business
About water management
About groundwater
About ground water resources
About waterworks
About infrastructure
About case study
About resource management
About regional development
About Miyakojima Island
About water project
About groundwater management
About water resource management
About Water resources
About Waterworks engineering and water treatment in general
About 宮古島
About 水道
About 物語