Ishak, Khodijah. 2017. “Penetapan Harga Ditinjau Dalam Persepektif Islam”. IQTISHADUNA: Jurnal Ilmiah Ekonomi Kita 6 (1), 35-49. https://ejournal.isnjbengkalis.ac.id/index.php/iqtishaduna/article/view/93.