Mustofa, Mustofa, Rafael Purtomo Sumaji, and Siti Komariyah. “POTENSI DAN STRATEGI OPTIMALISASITERHADAP AKTIVITASPETANI GARAMMELALUIPENDEKATAN HULU HILIR DI KAWASAN PESISIRPENAMBANGAN KECAMATAN PAJARAKANKABUPATEN PROBOLINGGO”. RELASI : JURNAL EKONOMI 10, no. 2 (March 31, 2015). Accessed October 28, 2020. http://jurnal.stie-mandala.ac.id/index.php/relasi/article/view/48.