Mofat Nyawalo, Aminer Titus, and Benard Okelo. “Estimation of Radii of Regions of Starlikeness and Spirallikeness for Analytic Mappings”. International Journal of Open Problems in Computer Science and Mathematics 19, no. 2 (January 25, 2026): 1–29. Accessed June 20, 2026. https://ijopcm.icsrs.uk/index.php/journal/article/view/59.