R, T., S. Vijayaram, S. E, and M. V. “Growth, Structural Characterization, and Nonlinear Optical Properties of L-Lysinium Hydrogen Adipate Single Crystals: An Integrated Experimental and DFT Study”. International Research Journal of Multidisciplinary Technovation, vol. 8, no. 4, July 2026, pp. 326-40, doi:10.54392/irjmt26419.