“Tinjauan Hukum Islam Terhadap Pembiayaan Haji Dan Umrah Melalui Sistem Marketing Di PT. Arminareka Perdana Yogyakarta”. 2015. Economic: Journal of Economic and Islamic Law 5 (1), 93-117. https://ejournal.kopertais4.or.id/tapalkuda/index.php/economic/article/view/952.