Hidayati, Dwi, & Soetriono Soetriono.
" DAMPAK PERUBAHAN HARGA PUPUK TERHADAP   PERMINTAAN PENAWARAN KOPI  INDONESIA." <em>JSEP (Journal of Social and Agricultural Economics)</em> [Online], 2.3 (2008): 13-27. Web. 28 Nov. 2024