Wang K.-J.Wang S.-M.SHU-JUNG YANG2019-10-142019-10-142007https://www.scopus.com/inward/record.uri?eid=2-s2.0-33751396886&doi=10.1016%2fj.ejor.2006.04.006&partnerID=40&md5=d1fa994401d937e5481e65beb4c7777ehttps://scholars.lib.ntu.edu.tw/handle/123456789/426622A resource portfolio model for equipment investment and allocation of semiconductor testing industryjournal article10.1016/j.ejor.2006.04.0062-s2.0-33751396886