Khattak, M., A. Qazi, S. Khan, S. Khattak, Z. Barki, and G. Ahmad. “Design and Analysis of M-Shape Printed Monopole Antenna for GPS/ISM/W-LAN Applications”. Technical Journal, Vol. 22, no. IV, Apr. 2018, https://tj.uettaxila.edu.pk/index.php/technical-journal/article/view/484.