NAGMY, H.; ROVNY, P.; VILHANOVÁ, L. 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. Disponível em: https://pefim.sggw.edu.pl/article/view/1479. Acesso em: 16 kwi. 2024.