Darsin, Darsin. 2019. “Analisis Perbandingan Peningkatan Penjualan Melalui Iklan Push Pada Marketplace Starup Unicorn Indonesia (Studi Kasus Tokopedia Dan Bukalapak Di CV.Karya Abadi)”. Prosiding University Research Colloquium, October, 77-88. https://repository.urecol.org/index.php/proceeding/article/view/808.