List of Articles Variational principle Open Access Article Abstract Page Full-Text 1 - Frequency Analysis of Embedded Orthotropic Circular and Elliptical Micro/Nano-Plates Using Nonlocal Variational Principle A Anjomshoa A.R Shahidi S.H Shahidi H Nahvi Open Access Article Abstract Page Full-Text 2 - Variational Principle and Plane Wave Propagation in Thermoelastic Medium with Double Porosity Under Lord-Shulman Theory R Kumar R Vohra M.G Gorla Open Access Article Abstract Page Full-Text 3 - Variational Principle, Uniqueness and Reciprocity Theorems in Porous Piezothermoelastic with Mass Diffusion R Kumar P Sharma