Sanae Rujivan. 1999. DRM solutions to two-dimensional linear wave equations. Department of Mathematics, Chulalongkorn University;
Sanae Rujivan. (1999) DRM solutions to two-dimensional linear wave equations . Chulalongkorn University/Bangkok.
Sanae Rujivan. DRM solutions to two-dimensional linear wave equations. . Bangkok:Chulalongkorn University, 1999.
Sanae Rujivan. (1999) DRM solutions to two-dimensional linear wave equations . Chulalongkorn University/Bangkok.