HITOSHI KUWAMURA. (2014) EXPERIMENTAL STUDY ON HYDRODYNAMIC DRAG OF WALLS IN NATURAL RIVER FLOWS. ISEC Press:ม.ป.ท.HITOSHI KUWAMURA. 2014. EXPERIMENTAL STUDY ON HYDRODYNAMIC DRAG OF WALLS IN NATURAL RIVER FLOWS. ม.ป.ท.:ISEC Press;HITOSHI KUWAMURA. EXPERIMENTAL STUDY ON HYDRODYNAMIC DRAG OF WALLS IN NATURAL RIVER FLOWS. ม.ป.ท.:ISEC Press, 2014. Print.