[期刊论文] |
来源:Petroleum-Gas University of Ploiesti Bulletin : Economic Sciences Series. 2006 ;(1):15-22.
出版社:Petroleum-Gas University of Ploiesti
[期刊论文] |
来源:Petroleum-Gas University of Ploiesti Bulletin : Economic Sciences Series. 2008 ;(4):55-68.
出版社:Petroleum-Gas University of Ploiesti
[期刊论文] |
来源:Annals of the University of Oradea : Economic Science. 2012 ;XXI(1):1098-1104.
出版社:University of Oradea