Jarral, A., M. Ali, M. H. Sahir, and R. A. Pasha. “DESIGN OPTIMIZATION AND ANALYSIS OF VERTICAL AXIS WIND TURBINE BLADE”. The Nucleus, vol. 50, no. 1, Jan. 2013, pp. 7-12, http://www.thenucleuspak.org.pk/index.php/Nucleus/article/view/770.