Mehmood, Nadeem, 		Burney, Syed, 		Rizwan, Kashif, 		Shah, Asadullah, AND 		Nadeem, Adnan.
" Building Spatio-Temporal Database Model Based on Ontological Approach using Relational Database Environment" <em>Mehran University Research Journal of Engineering and Technology</em> [Online], Volume 36 Number 4 (1 October 2017)