平台:
EBSCOhost Business Source Complete
(Available from 1997/07/01 until 1997/12/31.)
ProQuest SciTech Premium Collection
(Available from 1987/11/01 until 1997/12/31.)
EBSCOhost Business Source Complete
(Available from 1997/07/01 until 1997/12/31.)
ProQuest SciTech Premium Collection
(Available from 1987/11/01 until 1997/12/31.)