“Generalized Identities and Inequalities of Čebyšev and Ky Fan Type for ∇−convex function”, JPRM, vol. 18, no. 2, pp. 1 – 22, Dec. 2022, Accessed: Feb. 04, 2026. [Online]. Available: https://jprm.sms.edu.pk/index.php/jprm/article/view/183