Programming in Cobol/400 by James Cooper; Nancy B. Stern; Robert A. Stern

Advanced Structured Cobol Batch On-Line and Data-Base Concepts

IMS for the Cobol Programmer, Part 1: Data - Paperback, by Eckols Steve - Good

Assembler Language for FORTRAN, COBOL and PL/I Programmers by Shan S. Kuo

Murach's DB2 for the COBOL Programmer: Essential SQL Database Programming Gu...

Cobol Programming: A Structural Approach by Nickerson, Robert C., Good Book

Getting Started with Micro Focus Personal COBOL for Windows by Doke, E. Reed

VS COBOL II: Highlights and Techniques by James G. Janossy