Academy of Mathematics and Systems Science;
Chinese Academy of Sciences;
Beijing;
China;
School of Mathematical Sciences;
University of Chinese Academy of Sciences;
Chinese Academy of Sciences;
Beijing;
China;
Department of Mathematics;
Islamic University;
Kushtia;
Bangladesh;
3D; Elastic; Wave; Inhomogeneous; Media; Staggered-Grid; Scheme; High-Order; Stability; Energy; Estimate;