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Idwar, Nelvia, Irfandri, Lubis N, Veronica S. Analysis of The Chemical Properties of Ultisol After Addition of Solid Compost and Coal Fly Ash. J. Il. Tan. Lingk. [Internet]. 2025 Apr. 1 [cited 2025 Dec. 24];27(1):1-6. Available from: https://journal.ipb.ac.id/jtanah/article/view/60647