TY  - BOOK
AU  - Ummer, E.K.
TI  - Basic mathematics for economics, business, and finance
SN  - 9781032565453
U1  - R 330.0151 UMM(BAS) 
PY  - 2023///
CY  - London
PB  - Routledge
KW  - Economics-mathematical models
N1  - includes index
ER  -