TY  - BOOK
AU  - Duncan, Kevin
TI  - The diagrams book : : 50 ways to solve any problem visually 
SN  - 9789386105172
U1  - 658 DUN-K 
PY  - 2017///
CY  - India
PB  - Viva Books
KW  - Problem solving
KW  - Visual communication
ER  -