S. Athithan, K. Siva,. “Awareness and Control of Smoking Habit through Education: A Mathematical Model”. Annals of the Romanian Society for Cell Biology 25, no. 6 (May 20, 2021): 2571–2587. Accessed April 23, 2024. https://www.annalsofrscb.ro/index.php/journal/article/view/5871.