Abbas Fadhil Kreah, and Ali Ghani Nori. “The Use of The STEPWISE Method The Effect of Cultivated Area On Agricultural Production in Iraq ”. Bilangan : Jurnal Ilmiah Matematika, Kebumian Dan Angkasa, vol. 2, no. 6, Nov. 2024, pp. 01-10, doi:10.62383/bilangan.v2i6.303.