DAWIT UDESSA GEDE. Promotional Mix-Elements and Sales Volume: The Case of Primary Cooperatives of Coffee Farmers in West Guji Zone . Partners Universal International Research Journal, [S. l.], v. 3, n. 1, p. 150–167, 2024. DOI: 10.5281/zenodo.10845244. Disponível em: https://puirj.com/index.php/research/article/view/176. Acesso em: 16 may. 2024.