MOHAMMADSHAH, I., C. GHOBADI, and J. NOURINIA. “A Novel Flower-Shaped Fractal Monopole Antenna With Enhancement of Bandwidth for UWB Applications”. International Journal of Natural and Engineering Sciences, vol. 7, no. 3, June 2019, pp. 78-81, https://ijnes.org/index.php/ijnes/article/view/162.