Halim F, Wijaya AH, - W. Analisis dan Perancangan E-Commerce Berbasis Web Dengan Penerapan Sistem Perekomendasian Menggunakan Metode Collaborative Filtering Serta Metode Up, Down, Cross Selling. algor [Internet]. 2022 Sep. 15 [cited 2024 Dec. 4];4(1):28-43. Available from: https://jurnal.ubd.ac.id/index.php/algor/article/view/1516