我所了解的我们学校的硕士论文后面附的参考文献是50个左右，如果你看的硕士论文比较多的话，就会发现大多在50个以上，当然也有写的30多个的。其实这也是个面子问题，写的少了老师会觉得你读的文献少，写的论文深度不够。总之建议你的参考文献写的不少于50篇。
最后祝你好运！
铁路工程论文参考文献
干预初中校园欺负行为的有效途径研究摘要：欺负行为在中小学校园中普遍存在，由于严重危害学生的身心健康，已引起了研 究者的广泛关注。自1999年，国内陆续有学者涉足这一领域，但到目前，国内研究 基本为积累事实资料的问卷调查和数据搜集，可查的对欺负行为的教育干预研究只有 一项。 本研究选择苏州市普通中学初中二年级学生为被试，以社会背景模型理论和社会 学习与社会角色理论为依据，主要采用针对班级群体的干预方法，尝试探讨干预欺负 行为的有效途径。 本实验得出以下结论： (1)本干预实验促使学生对欺负行为的态度发生了极为显著的转变；而行为方面， 其中一所学校的实验班在受欺负分量表上产生显著差异，说明本实验取得了一定的效果。 (2)从社会背景模型理论和社会学习与社会角色理论出发，将欺负行为看作群体 现象，干预措施着眼于学生对欺负行为的态度、对自身参与角色的认知上，是切实可行的。关键词：初中生 欺负行为 干预实验Abstract: Bullying is pervasive in primary and middle schools. Because it is seriously harmful to one's health physically and psychologically, many researchers have devoted to this field. In China, some researchers have begun to paid attention to this problem since 1999, but most research just put emphasis on questionnaire investigation and data collection. Little attention has been given to intervention except one study. In this thesis, junior high school students are used to be research object. Since bullying is viewed as a group phenomenon, the intervention methods mainly targeted on the whole peer group. http://www.txlunwenw.com/article_show.asp?pageid=310 Conclusions of the paper are the following: I The intervention has greatly improved students' attitude toward bullying; On the behavior aspect, significant difference existed on the subscale of victimization in one school. These imply that the intervention is effective to counter bullying. II In this study, bullying is viewed as a group phenomenon. Based on the theory of social context model and of social learning and social role, the intervention method focused on the change of attitude toward bullying and the realization of their participant role among bul!ying episode and it is practicable.Key words: junior high school;bullying behavior;intervention希望可以帮助到你，望采纳