BAN'P20 UG/14355 UG/14356 UG/14368 Bansal, Raj K Heterocyclic chemistry / Raj K Bansal. – 6th ed. – New Delhi ; Kolkata : New Age International , 2020 xiv, 373p. ISBN9789388818568 : Rs.475/- . Heterocyclic chemistry – Pharmaceutical Organic Chemistry |