Rossdy, Munirah, Rashidah Omar, and Shaharuddin Cik Soh. “Bi-Univalent Function Classes Defined by Using an Einstein Function and a New Generalised Operator”. Science and Technology Indonesia 8, no. 2 (April 15, 2023): 195–204. Accessed June 20, 2026. https://sciencetechindonesia.com/index.php/jsti/article/view/619.