SADIQ, Mohammed; AHMAD, Muhammad; GAMA, Emmanuel; SAMBO, Abbas. Morbidity Cost and Willingness to Pay for Healthcare Insurance among Wheat Farmers in Jigawa State of Nigeria. Zeszyty Naukowe SGGW w Warszawie - Problemy Rolnictwa Światowego, [S. l.], v. 24, n. 1, p. 4–25, 2024. DOI: 10.22630/PRS.2024.24.1.1. Disponível em: https://prs.sggw.edu.pl/article/view/9711. Acesso em: 5 kwi. 2025.