Menus
https://msdn.microsoft.com/en-us/library/windows/desktop/dn742392(v=vs.85).aspx
Ribbons
https://msdn.microsoft.com/en-us/library/windows/desktop/dn742393(v=vs.85).aspx
Toolbars
https://msdn.microsoft.com/en-us/library/windows/desktop/dn742395(v=vs.85).aspx
Background Worker
https://yinyangit.wordpress.com/2011/06/16/csharp-thread-backgroundworker/
Icons
http://zone.ni.com/reference/en-XX/help/370052H-01/tsref/infotopics/toolbarbuttons/
http://www.standard-icons.com/
http://www.toolbar-icons.com
Icons miễn phí
Các Icon cực đẹp cho máy tính của bạn
http://nintendovn.com/forum/threads/1295/
https://forum.vietdesigner.net/
http://nintendovn.com/forum/threads/1295/
