NAGMY, Hemmali; ROVNY, Patrik; VILHANOVÁ, Lucia. The African Economies and Agricultural Value-Added – Contribution to GDP. Top Economies of 20 Countries in Africa 2012. Zeszyty Naukowe SGGW, Polityki Europejskie, Finanse i Marketing, [S. l.], n. 7(56), p. 62–72, 2012. DOI: 10.22630/PEFIM.2012.7.56.7. Disponível em: https://pefim.sggw.edu.pl/article/view/1479. Acesso em: 31 mar. 2025.