“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” (2022) Procedia of Social Sciences and Humanities, 3, pp. 201–212. doi:10.21070/pssh.v3i.156.