About KURAMOTO NOBUTAKA
About AKAI NOBUO
About port(harbor)
About data analysis
About performance analysis
About efficiency
About accounting
About working capital
About grading(ranking)
About factor analysis
About data envelopment analysis
About factor analysis
About Waterborne transportation and service,etc.
About 港湾
About 運営
About 効率性
About 要因分析
About 財政
About 要因
About 分析