TY  - GEN
AU  - Samarasinghe , S.I.  
AU  - Gunaherath , G.M. Kamal B. 
AU  - Fernando , J.N.O. 
AU  - Chandana , A.K.
TI  - Organic chemistry  part- I: aromatic heterocyclic chemistry
U1  - 547 
PY  - 1989///
CY  - Nugegoda
PB  - Open University
KW  - Computer Programming
KW  - Organic Chemistry
ER  -