TAKELE, A. D.; SELASSIE, Y. G.; TEKSET, S. Farmers’ Willingness to Pay for 2-Wheel Tractor Hiring Services in Northwestern Ethiopia: A Contingent Valuation Study. Asian Journal of Agriculture and Food Sciences, [S. l.], v. 6, n. 6, 2018. DOI: 10.24203/ajafs.v6i6.5592. Disponível em: https://ajouronline.com/index.php/AJAFS/article/view/5592. Acesso em: 29 mar. 2024.