ARIS KURNIAWAN, DEDI. “STUDI FENOMENOLOGI KEGIATAN KOPERASI JASA KEUANGAN SYARIAH AMANAH UMMAH”. Paradigma 2, no. 2 (May 16, 2014). Accessed July 12, 2025. https://ejournal.unesa.ac.id/index.php/paradigma/article/view/7894.