Navruzovich, Yovqochev Pahlavon, and Dilmurod Ortiqboyev. 2023. “Shadow of the Kerr–Newman–Kiselev–Letelier Black Hole”. Vital Annex: International Journal of Novel Research in Advanced Sciences 2 (9):16-23. https://innosci.org/IJNRAS/article/view/1621.