خواص عناصر گروه ۱۴ 

http://www.kimiagar85.blogfa.com/post-59.aspx 

http://kimiagar85.blogfa.com/post-52.aspx 

http://myshimi.mihanblog.com/post/77

 http://fati0141.blogfa.com/post/55 

http://myshimi.mihanblog.com/post/tag/%D8%B3%D8%B1%D8%A8 

http://myshimi.mihanblog.com/post/76 

http://myshimi.mihanblog.com/post/tag/%DA%98%D8%B1%D9%85%D8%A7%D9%86%DB%8C%D9%85 

http://myshimi.mihanblog.com/post/tag/%D9%82%D9%84%D8%B9 

http://andishechem.mihanblog.com/post/59 

http://pahnak.persianblog.ir/post/160 

http://fa.wikipedia.org/wiki/%D8%B3%D8%B1%D8%A8 

http://www.ilzima.org/farsi/lead/index.php 

http://fa.wikipedia.org/wiki/%DA%A9%D8%B1%D8%A8%D9%86 

http://fa.wikipedia.org/wiki/%D8%B3%DB%8C%D9%84%DB%8C%D8%B3%DB%8C%D9%85 

http://fa.wikipedia.org/wiki/%D9%82%D9%84%D8%B9 

http://fa.wikipedia.org/wiki/%D8%B3%D8%B1%D8%A8