Kanwal, Salma, Rauf, Asia, Malik, Shabnam, Sumbal, Tahira, Arshad, Misbah, Irfan, Rida and Manzoor, Ayesha 2020. Certain topological indices and polynomials for semitotal line graph and its line graph for Dutch windmill graph. Utilitas Mathematica . 117, (Nov. 2020).