Chart: The Longest-Serving Japanese Prime Ministers | Statista
List: The world's longest-serving leaders | Monitor
Meet 6 of the Longest-Serving Politicians in U.S. History | Time
Holding On To Power: Africa's Longest-Serving Leaders – Channels Television
Africa's longest serving presidents still going strong | Club of Mozambique
The world's 7 longest-serving rulers | News | Al Jazeera
The World's Longest-Serving Leaders
Chart: Longest Serving National Leaders | Statista
How Angela Merkel's Longevity Compares to 3 Decades of European Leadership - The New York Times
Mitch McConnell becomes longest-serving party leader in Senate history
7 Africa's Longest Serving Presidents - FurtherAfrica
Africa's Current Longest-Serving Leaders
The world's longest-serving leaders
11 longest-serving African leaders
Africa's Current Longest-Serving Leaders
Africa's Current Longest-Serving Leaders
Current Longest Ruling Leaders In Europe Compared To The Average Current National Leaders In EU - 2019 : r/europe
List of longest serving higher education presidents in the United States - Wikipedia
Africa's 10 longest-serving presidents, ca. 2017 | Download Table
Equatorial Guinea's Obiang, Africa's Longest-Serving President, to Seek New Term - Bloomberg
Chart: Vladimir Putin Becomes Russia's Second Longest-Serving Leader | Statista
Chart: Where the World's Longest-Serving Leaders Hold Office | Statista
Infographic: Russian leaders who served the longest time in power - Times of India
