Ach. Syuhbanul Yaumi, Zainul Zulfiqkar and Aryo Nugroho 2021. Sistem Penunjang Keputusan Pemasaran Produk X Menggunakan Metode K-Means. Systemic: Information System and Informatics Journal. 6, 1 (Jan. 2021), 44–50. DOI:https://doi.org/10.29080/systemic.v6i1.936.