HUSSEIN JASIM, LAYTH, et al. “NONLINEAR PROPAGATION AND SCATTERING OF ELECTROMAGNETIC WAVES IN BIOLOGICAL TISSUES AT THZ FREQUENCIES”. TPM – Testing, Psychometrics, Methodology in Applied Psychology, vol. 32, no. S6(2025): Posted 15 Sept, Sept. 2025, pp. 114-22, https://tpmap.org/submission/index.php/tpm/article/view/1663.