Puspaningrum, Diah, AND 		Agustina, Titin.
" PROSPEK DAN STRATEGI PENGEMBANGAN KOPI ARABIKA SPECIALTY KETINGGIAN SEDANG BERBASIS KAWASAN  DI KABUPATEN JEMBER" <em>JSEP (Journal of Social and Agricultural Economics)</em> [Online], Volume 9 Number 3 (8 January 2018)