Siregar, R. J., Lisna Khairani Nasution, Elvi Suryani, Dewi Aminasty Siregar, and Fatimah. “Promotion the Dangers of Smoking in Adolescents at SMAN 8 Padang Sidempuan in 2022”. IJCS: International Journal of Community Service, vol. 1, no. 2, Dec. 2022, pp. 233-6, doi:10.55299/ijcs.v1i2.282.