Al-HAWARY, T., B.A. FRASIN, and M. DARUS. “On Sandwich Theorems for P-Valent Functions Involving a New Generalized Differential Operator”. Studia Universitatis Babeș-Bolyai Mathematica 60, no. 3 (September 30, 2015): 395–402. Accessed February 5, 2025. https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/5779.