ARIS KURNIAWAN D. STUDI FENOMENOLOGI KEGIATAN KOPERASI JASA KEUANGAN SYARIAH AMANAH UMMAH. JPA [Internet]. 2014 May 16 [cited 2025 Jul. 12];2(2). Available from: https://ejournal.unesa.ac.id/index.php/paradigma/article/view/7894