Supot Sookyang. 2007. Characterization of cycles and trees with nonsingular adjacency matrices. Field of Study Mathematics, Chiang Mai University;
Supot Sookyang. (2007) Characterization of cycles and trees with nonsingular adjacency matrices . Chiang Mai University/Chiang Mai.
Supot Sookyang. Characterization of cycles and trees with nonsingular adjacency matrices. . Chiang Mai:Chiang Mai University, 2007.
Supot Sookyang. (2007) Characterization of cycles and trees with nonsingular adjacency matrices . Chiang Mai University/Chiang Mai.