diff --git a/Documents/Resources/资源网站.md b/Documents/Resources/资源网站.md
index 9dfce6f..c79b0bb 100644
--- a/Documents/Resources/资源网站.md
+++ b/Documents/Resources/资源网站.md
@@ -105,3 +105,6 @@
 [GitChat](https://gitbook.cn/)  
 [简书](https://www.jianshu.com/)  
 [GitBook](https://www.gitbook.com/)  
+[鲁东大学图书馆](http://www.lib.ldu.edu.cn/lanmu/zxtsg.html)  
+[水木搜索](https://tsinghua-primo.hosted.exlibrisgroup.com/primo-explore/search?vid=86THU)  
+[中国图书馆分类法](http://www.ztflh.com)