Leghari, Muhammad, Qamar Qazi, and Qadir Jamali. 1931. “Development of Free Energy Eco-Friendly Two-Stroke Engine”. Quaid-E-Awam University Research Journal of Engineering, Science & Technology, Nawabshah. 17 (2), 38-42. http://publications.quest.edu.pk/ojs-3.1.1-4/index.php/qrj/article/view/106.