T P Madhav, B, M Venkateswara Rao, K Manisahithi, D S S Sarvani, M Dharani, and S V Rami Reddy. “Compact Metamaterial Inspired Periwinkle Shaped Fractal Antenna for Multiband Applications”. International Journal of Engineering and Technology 7, no. 1.1 (December 21, 2017): 507–512. Accessed August 18, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/10157.