TY - BOOK AU - Haruoki Ebe, Kouichi Yonekawa, Ryouichi Ohnishi. ED - 7th Afro-Asian Regional Conference. TI - A Stucy of the Drainage Improvement by Mathematical Simulation Model PY - 0000///[date of publication not identified] CY - 7th Afro-Asian Regional Conference KW - IRRIGATION KW - IRRIG KW - Simulation Model KW - JAPAN ER -