I. COBOL:
COBOL programming-M. K. Roy \ 1998-ISBN 0-07-460318-3
COBOL unleashed-Jon wessler \ 1998-ISBN 81-7635-154-7
Murach's structured COBOL-ISBN 1-890774-05-7
Advanced COBOL-Leonard J. K-McGraw Hill-1995
Teach Yourself COBOL-Mo budlong-ISBN 0-672-30469-4
COBOL from micro to MAINFRAME-GRAUER-ISBN 0-13-138686-7
Mastering COBOL-Carol Baroudi-ISBN: 078212321x
Microsoft COBOL reference manual-2000
COBOL under control-W. C cave-1986-paper Vol: 13
COBOL 2002-ISO/IEC 1989: 2002 (e) Nb
ISO/IEC Directives part-3-1997, ISBN 92-67-01070-0.
The Unicode Standard V3.0, Addison Wesley,-Feb 2000, ISBN 0-201-61633-5
Ii. jcl
Murach's OS/390 & Z/OS jcl-ISBN 1-890774-14-6
The MVS jcl primer-Zamir & Ranada
S \ 390 job control language-deward rown \ 2001-ISBN 04-7128-309-6
Iii. CICs:
CICs Handbook-yakhisha Kageyama-ISBN 0-07-463221-3
Murach's CICs for the COBOL programmer-ISBN 1-890774-09-x
Command level programming-Alida M. jatich \ 1991-ISBN 04-7152-862-5
Murach's CICs Desk Reference-Raul Menendez-ISBN 1-890774-17-0
CICs supplied transactions-SC33-0511
Iv. DB2:
DB2 for the COBOL programmer-Steve eckols-ISBN 1-890774-02-2
DB2 complete reference
DB2 guidelines-Craig S. Mullins
DB2 developers guide-girai smiles
DB2 V4-TCS study guide
dB Application Programming Guide-IBM SC26-4080