Production and marketing of Coffee (Coffea robusta) in Kogi State, Nigeria: Challenges and recommendation for intervention. JOURNAL OF SOCIAL SCIENCE RESEARCH, [S. l.], v. 3, n. 2, p. 207–215, 2014. DOI: 10.24297/jssr.v3i2.3559. Disponível em: https://www.rajpub.com/index.php/jssr/article/view/3559. Acesso em: 13 jun. 2026.