A. Sanusi, A. Husna, E. W. Surbakti, and M. F. Azmi, “ Strategi Pemasaran Produk Paket Pos Kilat Khusus Pada PT. Pos Indonesia: Marketing Strategic of Express Product Packages at PT. Pos Indonesia”, BISMA Cendekia, vol. 1, no. 2, pp. 41–45, Jan. 2021.