An Android-Based User Recommendation System for Social Network Platform Using Collaborative Filtering Method on Youth Break the Boundaries Foundation: Sistem Rekomendasi Pengguna Aplikasi Jejaring Sosial Berbasis Android Dengan Algoritma Cosine Similarity Pada Youth Break the Boundaries Foundation. pssh 2022, 3, 201-212. https://doi.org/10.21070/pssh.v3i.156.