https://en.wikipedia.org/wiki/List_of_countries_by_road_network_size

https://en.wikipedia.org/wiki/List_of_countries_by_road_network_size

https://www.citypopulation.de/en/world/bymap/Railways.html

https://en.wikipedia.org/wiki/List_of_countries_by_road_network_size

https://www.theglobaleconomy.com/rankings/Internet_bandwidth/Africa/

https://www.citypopulation.de/en/world/bymap/internetusers

https://data.worldbank.org/indicator/IT.MLT.MAIN?end=2009&locations=GN&start=1985

https://www.citypopulation.de/en/world/bymap/MobilePhones.html

https://data.worldbank.org/indicator/IT.MLT.MAIN?end=2009&locations=GN&start=1985

https://en.wikipedia.org/wiki/List_of_countries_by_vehicles_per_capita

https://en.wikipedia.org/wiki/List_of_countries_by_vehicles_per_capita

https://www.se4all-africa.org/seforall-in-africa/country-data/guinea/