Mr. Chavare shubham, Mr. Dhawale Suraj, and Mr. Jadhav kiran,. “FOUR STROKE INTERNAL COMBUSTION ENGINE”. International Journal of Innovations in Engineering Research and Technology (March 27, 2021): 1–3. Accessed July 1, 2025. https://repo.ijiert.org/index.php/ijiert/article/view/1184.