Penetapan nitrogen tanah metode Kjeldahl pada sampel tanah laporan praktik kerja lapangan Rahmawati, Ratih text Cianjur SMK Terpadu Al Ittihad 2018 id 37 p. : ill. ; 29 cm. Ratih Rahmawati SOIL ANALYSIS KJELDAHL METHOD NITROGEN CONTENT 631.417.1 631.417.1 RAH p 250725 20250725083955 20210917093820 INLIS000000000001358 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)