Hadi RMP, Sutikto T, Bowo C. Soil Productivity Index Based on Soil Taxonomy and Its Correlation with Coffee Productivity in Several Soil Orders: Indeks Produktivitas Tanah Berbasis Soil Taxonomy dan Korelasinya Dengan Produktivitas Kopi pada Beberapa Ordo Tanah. J. Il. Tan. Lingk. [Internet]. 2019 Apr. 1 [cited 2025 Dec. 29];21(1):7-12. Available from: https://journal.ipb.ac.id/jtanah/article/view/29287