BEKELE, A.; ABEBE, Y. Analysis of Adoption Spell of Hybrid Maize in the Central Rift Valley, Oromyia National Regional State of Ethiopia: A Duration Model Approach. Journal of Science, Technology and Arts Research, [S. l.], v. 3, n. 4, p. 207–213, 2014. Disponível em: https://journals.wgu.edu.et/index.php/star/article/view/553. Acesso em: 23 sep. 2024.