TOPUZ, B. K. Members’ willingness to pay for sustainability agricultural organization: A Heckman model approach. Emirates Journal of Food and Agriculture, [S. l.], v. 35, n. 11, 2023. DOI: 10.9755/ejfa.2023.3178. Disponível em: https://ejfa.me/index.php/journal/article/view/3178. Acesso em: 19 sep. 2025.