Cellphones - Third World and Developing Nations - Poverty - Technology - The New York Times
Mobile phone - Wikipedia
Emerging nations catching up to U.S. on technology adoption, especially mobile and social media use | Pew Research Center
Emerging Nations Embrace Internet, Mobile Technology | Pew Research Center
How to Use Your Existing Phone Overseas | Wirecutter
Cell Phones in Japan
Mobile Phone Access Varies Widely in Sub-Saharan Africa
Chart: Americans Talk on Their Mobile Phones More Than Anyone Else | Statista
Using a Phone Overseas: The Best Smartphones for Travel in 2023
History of mobile phones | What was the first mobile phone?
Chart: The Real Cost of Owning a Mobile Phone Around the World | Statista
The Best Unlocked Phones for 2023 | PCMag
Cell Phones Nearly Universal in Much of the World | Pew Research Center
How to Use Your Cell Phone When Traveling in Another Country | Uneven Sidewalks Travel Blog
Top Countries by Cell Phone Users 1980 - 2020 - YouTube
Your mobile phone is powered by precious metals and minerals | Natural History Museum
The 5 Best Cell Phone Plans for 2023 | Reviews by Wirecutter
Do international phones work in the U.S.? | Tom's Guide
Best International Cell Phone Plans For Travelers In 2022
Cellphones, Not Banks, May Be Key to Finance in the Developing World - The New York Times
The 20 Countries With the Highest Per Capita Cell-Phone Use - Bloomberg
Non-mobile phone users in emerging countries: What hinders their access?| Pew Research Center
