Diana, Diana, and Wahyu Syarvina. “Analysis of BPJS Employment Membership for Informal Sector Workers in Medan City (Case Study of BPJS Employment, North Medan Branch)”. Jurnal Ekonomi, Manajemen, Akuntansi Dan Keuangan, vol. 3, no. 2, Apr. 2022, pp. 479–484, doi:10.53697/emak.v3i2.483.