Penetapan karbon organik pada tanah dengen metode Walkley and Black Wati, Ismi Rahma text Cianjur SMK Al Ittihad 2018 iii, 21p : ill. ; 30 cm. Ismi Rahma Wati SOIL ANALYSIS SOIL MINERAL WALKLEY 631.417.1 631.417.1 WAT p 250725 20250725083927 20220720032017 INLIS000000000001796 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)