Kusasi, Firmansyah, and Iranita Iranita. “Analisis Jaringan Sosial Bursa Jual Beli Facebook Di Kepulauan Riau”. Bahtera Inovasi, vol. 3, no. 1, Nov. 2019, pp. 67-81, https://doi.org/10.31629/bi.v3i1.1647.