Velia, V., and D. A. Candraningrum. “Pengaruh Viral Marketing Video Promosi Instagram Terhadap Keputusan Pembelian Konsumen Bakso Goreng IONG”. Prologia, vol. 3, no. 2, Dec. 2019, pp. 358-64, doi:10.24912/pr.v3i2.6358.