Pristiani, T., Rozci, F., & Indah, P. N. (2025). Marketing Efficiency Analysis of Robusta Coffee Commodity in Dampit District, Malang Regency. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE), 8(2), 5602-5615. https://doi.org/10.31538/iijse.v8i2.6137