Who Are America's Billionaires, Anyway? - The New York Times
Rihanna Is America's Youngest Self-Made Woman Billionaire, Per Forbes
How to Become a Billionaire: You've Got Until Your Late 40s - TheStreet
Forbes Billionaires 2022: The Richest People In The World
8 showbiz celebrities who made Forbes' 2022 billionaires list: Rihanna debuted while Kim Kardashian, Ye, Jay-Z and more returned … but who has the highest net worth? | South China Morning Post
Do You Have These 7 Billionaire Behaviors? | Inc.com
List of Russian billionaires - Wikipedia
Reginald Lewis, America's First Black Billionaire | Libertarianism.org
World's youngest male billionaire Gustav Magnar Witzoe is Norwegian model
Mapped: The World's Billionaire Population, by Country