NURHADI, Eko. DAYA SAING USAHATANI KEDELAI DI DESA WONOKALANG KABUPATEN SIDOARJO. JSEP (Journal of Social and Agricultural Economics), [S.l.], v. 3, n. 3, p. 38-47, nov. 2009. ISSN 2356-2382. Available at: <https://jurnal.unej.ac.id/index.php/JSEP/article/view/403>. Date accessed: 25 nov. 2024.