“ Comparative Study of the Optoelectronic, Reactivity Descriptors, and Thermodynamic Properties for Derivatives of Fluorene, and its Hetero-Analogous (Si, NH, O, S, and Se) by Employing the DFT and TD-DFT Approaches” (2024) Malaysian Journal of Fundamental and Applied Sciences, 20(4), pp. 871–887. doi:10.11113/mjfas.v20n4.3538.