https://learn.microsoft.com/id-id/dotnet/api/system.globalization.cultureinfo.isneutralculture?view=netframework-4.8.1&viewFallbackFrom=net-10.0
CultureInfo.IsNeutralCulture Property (System.Globalization) | Microsoft Learn
Gets a value indicating whether the current CultureInfo represents a neutral culture.
property systemglobalizationmicrosoftlearn