na INLIS000000000001796 20230316083738 0010-0422000051 20220720032017 0010-0422000051 0010-0422000051 Penetapan karbon organik pada tanah dengen metode Walkley and Black / Ismi Rahma Wati Wati, Ismi Rahma iii, 21p : ill. ; 30 cm. Cianjur : SMK Al Ittihad, 2018 230316 | | | 631.417.1 631.417.1 WAT p SOIL ANALYSIS SOIL MINERAL WALKLEY 2319/R/2019