Indri Lubis, Sayuti Hasibuan, Aisyah Noer, and Hertika Sari Sinabutar. “Oral Health Problems Perceived: Electronic Cigarettes Versus Conventional Smokers”. Dentika: Dental Journal 27, no. 2 (December 31, 2024): 104–111. Accessed October 27, 2025. https://talenta.usu.ac.id/dentika/article/view/17720.