Sitompul, J. I., Anak Agung Sagung Sawitri, and Dyah Pradnyaparamita Duarsa. “Refusal of COVID-19 Booster Vaccination Among People Living in Remote Tourism Area, Samosir, Indonesia”. Public Health and Preventive Medicine Archive, vol. 11, no. 2, Dec. 2023, pp. 166-78, doi:10.53638/phpma.2023.v11.i2.p05.