“Existence of a Solution for Integral Urysohn Type Equations System via Fixed Points Technique in Complex Valued extended bb-Metric Spaces”. Journal of Prime Research in Mathematics 16, no. 2 (December 31, 2020): 109 – 122. Accessed August 30, 2025. https://jprm.sms.edu.pk/index.php/jprm/article/view/164.