1Bejj ,J. (1995). "The intemationalization of small computer software fims-a further challenge to'stage' theories",European Jounal of Marketing,29(8),60～75.
2Czinkkota and Ursic(1987), "A refutation of the psychic distance effect on export development", Developments inMarketing Science 10:157～ 160.
3Bejj ,J. (1995). ''The intemationalization of small computer software fims-a further challenge to‘stage' theories'',European Jounal of Marketing,29(8),60-75.
4Czinkkota and Ursic(1987), ''A refutation of the psychic distance effect on export development'', Developments inMarketing Science 10:157- 160.
