辽宁石油化工大学学报
生物医药企业研发投入的中介效应探析
王莉华,李海红
The Mediating Effect Analysis of R&D on  Investment of BioPharmaceutical Companies
Wang Lihua, Li Haihong
辽宁石油化工大学学报 . 2014, (5): 79 -84 .  DOI: 10.3696/j.issn.1672-6952.2014.05.020