Labidi, N.S. 2021. A DFT STUDY OF HYPER-RAYLEIGH SCATTERING (HRS) FIRST HYPERPOLARIZABILITY OF SUBSTITUTED POLYENE: PART (II). Journal of Fundamental and Applied Sciences. 14, 1 (Dec. 2021), 229–251. DOI:https://doi.org/10.4314/jfas.v14i1.12.