Zerry All Vindo Tarigan, Ali Napiah Nasution, and Chrismis Novalinda Ginting. “An Integrated Marketing Communication Strategy to Increase a Number of Inpathent Visits at Efarina Etaham Hospital Berastagi”. Jurnal Info Sains : Informatika dan Sains 14, no. 01 (February 22, 2024): 795–810. Accessed January 9, 2025. https://ejournal.seaninstitute.or.id/index.php/InfoSains/article/view/4133.