平台:
EBSCOhost Business Source Complete
(Available from 2005/06/01 until 2007/09/30.)
EBSCOhost Energy & Power Source
(Available from 2005/06/01 until 2007/09/30.)
EBSCOhost Business Source Complete
(Available from 2005/06/01 until 2007/09/30.)
EBSCOhost Energy & Power Source
(Available from 2005/06/01 until 2007/09/30.)