Alfian, Denny. “Sistem Pendukung Keputusan Berbasis Metode Analytical Hierarchy Process (AHP) Dalam Pemilihan Biji Kopi Berkualitas”. INTECOMS: Journal of Information Technology and Computer Science 4, no. 2 (August 30, 2021): 192 - 201. Accessed October 16, 2021. https://journal.ipm2kpe.or.id/index.php/INTECOM/article/view/2837.