Spectroscopic and Nonlinear Optical Properties of Biologically Active 3‐(2/3/4‐Pyridyl)-4‐amino‐1,2,4‐triazole‐5‐thiones by Density Functional Theory Method. EPSTEM. 2019;7:371-379. Accessed January 18, 2026. https://epstem.net/index.php/epstem/article/view/271