Dirga Buana, Berilisda, AND 		Suwandari, Anik.
" OPTIMALISASI USAHATANI SAYUR TUMPANGSARI  DI DESA SUKORAMBI KECAMATAN SUKORAMBI  KABUPATEN JEMBER" <em>JSEP (Journal of Social and Agricultural Economics)</em> [Online], Volume 13 Number 2 (31 July 2020)