1125- On the Duplication System with Repair and Preventive Maintenance

1150- Unloaded Duplication System with Repair and Preventive Maintenance

508- An Optimal Policy for Machine Tool Replacement

887- Process Control Series: Equipment Specification

993 - System of Manpower Planning on the Enterprise Level.

845- A Guide for The Programmers & Operators on the I.B.M 1620

1064 - Equiping Farms with Means of Mechanisation and their Utilisation ( Some Problems Only).

. 838-DIGITAL COMPUTER SYSTEMS

845-A GUIDE FOR THE PROGRAMMERS & OPERATORS ON THE I.B.M. 1620

876- Process Control Series Process Control software