Adib, Roisul. 2021. “Preference of Santri in Increasing Interest of Saving at Sharia Banks in Malang Regency : Study at Islamic Boarding School of Annur Bululawang”. Iqtishodia: Jurnal Ekonomi Syariah 6 (1). https://doi.org/10.35897/iqtishodia.v6i1.262.