TY  - BOOK
AU  - Ashraf, P K; Researcher
TI  - Some studies on signed graphs
U1  - 511 
PY  - 2017///
CY  - Kannur
PB  - Kannur university
KW  - Thesis ( Ph.D )   Mathematics
KW  - Graph theory  - Signed Graphs
KW  - Arith,matic IASL - Signed Graphs
ER  -