CHEMICAL AND MINERALOGICAL PROPERTIES OF ULTISOLS OF SASAMBA AREA, EAST KALIMANTAN. Indonesian Journal of Agricultural Science, [S. l.], v. 2, n. 2, p. 37–47, 2016. Disponível em: https://epublikasi.pertanian.go.id/berkala/ijas/article/view/395. Acesso em: 17 oct. 2026.