“IMPACT OF BI-LINEAR TEMPERATURE VARIATION ON THE VIBRATION OF ISOTROPIC VISCO-ELASTIC SQUARE PLATES C-C-C-C WITH CIRCULAR THICKNESS VARIATION”. Hunan Daxue Xuebao Journal of Hunan University Natural Sciences, Dec. 2024, pp. 67-73, http://johuns.org/index.php/JHUNS/article/view/45.