Ali, Farhad, 		Asif Jan, Muhammad, 		Mashwani, Wali Khan, 		Khanum, Rashida Adeeb, AND 		Khan, Hidayat Ullah.
" The Physical Significance of Time Conformal Minkowski Spacetime" <em>Mehran University Research Journal of Engineering and Technology</em> [Online], Volume 39 Number 2 (1 April 2020)