Sinaga, Dearma, 		Sinaga, Julhendri, AND 		Maharani, Thetty.
" ANALISIS PENGENDALIAN INTERNAL ATAS PERSEDIAAN BARANG DAGANG  PADA PT. KIMIA FARMA MEDAN" <em>JURNAL PENELITIAN FISIKAWAN</em> [Online], Volume 4 Number 2 (6 September 2021)