Gada Gizachew Wakjira 2022. The Significance Effect of Coffee Quality Practices on Sustainable Export Performance the Mediating Role of Coffee Processing Performance: In Case of Oromia Regional State, West Guji Zone state, West Guji Zone. Partners Universal International Research Journal. 1, 4 (Dec. 2022), 75–85. DOI:https://doi.org/10.5281/zenodo.7480215.