ASP.NET MVC 5.2 + Web API 2.2 + Web Pages 3.2 (edit)
IsLocalUrl
https://weblogs.asp.net/jongalloway/preventing-open-redirection-attacks-in-asp-net-mvc
https://docs.microsoft.com/en-us/aspnet/mvc/overview/security/preventing-open-redirection-attacks
Razor - How to display amount with currency format in mvc3
http://www.advancesharp.com/blog/1137/razor-conditional-attribute-and-formatting
https://stackoverflow.com/questions/6924067/how-to-get-specific-culture-currency-pattern
https://stackoverflow.com/questions/11753594/how-to-display-amount-with-currency-format-in-mvc3
https://msdn.microsoft.com/en-us/library/syy068tk(v=vs.100).aspx
Hiển thị số money, số double, số decimal
http://www.csharp-examples.net/string-format-double/
http://www.anotherchris.net/net/net-formatting-strings-reference/