Hsieh, W.-T.W.-T.HsiehStu, J.J.StuLiang, C.-M.C.-M.LiangSENG-CHO CHOU2020-02-102020-02-102009https://scholars.lib.ntu.edu.tw/handle/123456789/456024A multi-level marketing framework for advertising in social network servicesconference paper10.1109/EBISS.2009.51378782-s2.0-70349693940https://www.scopus.com/inward/record.uri?eid=2-s2.0-70349693940&doi=10.1109%2fEBISS.2009.5137878&partnerID=40&md5=4ba8e6a851966aa96670002a98f6d03b