Nurdin, S., Novta Dany’el Irawan and Riski Nur Istiqomah Dinnullah 2022. K – Nearest Neighbor dalam Klasifikasi Green Beans Kopi Robusta Berdasarkan Grade Coffee . RAINSTEK : Jurnal Terapan Sains & Teknologi. 4, 4 (Dec. 2022), 256–263. DOI:https://doi.org/10.21067/jtst.v4i4.8229.