(1)
Department of Economics, Faculty of Business and Economics, Universitas Islam Indonesia, Yogyakarta, Indonesia
,
(2)
Magister in Syariah Economics, Faculty of Sharia Economic and Business, Institut Syariah Negeri Junjungan Bengkalis, Bengkalis, Indonesia
,
(3)
Islamic Business School, Universiti Utara Malaysia, Nilai, Malaysia
,
(4)
Department of Economics, Faculty of Economics and Business, Universitas Terbuka, Tangerang, Indonesia