Sonia Anjelica, and Muhammad Huseini. 2024. “Factors Influencing Coffee Farmers’ Income in Kisam Tinggi District, Ogan Komering Ulu (OKU) Selatan Regency: A Case Study of Simpang Empat Village”. International Journal of Economics, Business and Innovation Research 3 (05), 1165-76. https://doi.org/10.63922/ijebir.v3i05.1185.