Masaaki Kondo, and Takamitsu Kajisa. “FUNDAMENTAL PROPERTIES AND ANALYSIS OF WATER QUALITY IN A RESERVOIR AFFECTED BY LITTLE WATER USE AND TEA PLANTATION”. GEOMATE Journal, vol. 7, no. 14, Dec. 2015, pp. 1084-9, https://geomatejournal.com/geomate/article/view/2986.