Nugraha, D. A., and T. Y. Pramana. “Google Trends Data Analysis of Hepatitis B and Their Correlation With Hepatitis B Early Detection Program for Pregnant Women in Indonesia”. BKM Public Health and Community Medicine, Vol. 38, no. 04, Apr. 2022, pp. 107-12, doi:10.22146/bkm.v38i04.4413.