Simamora, Darius, 		Sitorus, Saibun, AND 		Tarigan, Daniel.
" ANALISIS KADAR MAGNESIUM (Mg) TOTAL DAN MANGAN (Mn) PADA PENAMBAHAN EM4 TERHADAP PUPUK KOMPOS (SAMPAH KULIT KEDELAI - KACANG PANJANG)" <em>PROSIDING SEMINAR NASIONAL KIMIA</em> [Online], Volume 1 Number 1 (12 July 2023)