Paranoan, Ria Rachel, Fakultas Pertanian, Universitas Mulawarman, Kalimantan Timur, Indonesia
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AGRITROPICA : Journal of Agricultural Sciences Vol. 2 No. 2 (2019) - Agritropica, Vol 2, No. 2 2019
Chemical Properties and Mineralogical Composition of Soils in Original site at Coal Mining Area
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