TY  - BOOK
AU  - K.M.D.S. Jayathilaka 
TI  - Combined Mathematics -Motion And Related Graphs 
SN  - 978-955-1605-31-5
PY  - 2013///
CY  - Lakva Publishers 
PB  - Batharamulla
N1  - S.G. Dharmasena
ER  -