How to add 'SQLiteWinRTPhone' Reference in VS Project for WP

Question

Can anyone give me link of 'SQLiteWinRTPhone' Reference, As I am working on the SQLite program, I added SQLite for Windows Phone Reference, I got one sample code on below link, http://www.codeproject.com/script/Articles/ArticleVersion.aspx?aid=642845&av=940817

Here, one command is there
Database database = new Database(ApplicationData.Current.LocalFolder, "usertask.db");
So its giving error that "Error1The type or namespace name 'SQLiteWinRTPhone' could not be found (are you missing a using directive or an assembly reference?)C:\Users\Aditya\Downloads\Compressed\SQLite\SQLiteNew\MainPage.xaml.cs47SQLiteNew
"
So please help me to add this reference in References, I tried but its not getting listed in References Window.