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- [4] Saudi Arabia's chemicals industry continues to grow 1600, American Institute of Chemical Engineers (110):
- [6] INFORMATION-SOURCES 1988 - THE ANNUAL DIRECTORY OF THE INFORMATION-INDUSTRY-ASSOCIATION - VANGORDER,BE ELECTRONIC LIBRARY, 1988, 6 (06): : 471 - 471
- [7] INFORMATION-SOURCES 1987 - THE ANNUAL DIRECTORY OF THE INFORMATION-INDUSTRY-ASSOCIATION - VANGORDER,BE ONLINE REVIEW, 1987, 11 (03): : 145 - 145
- [8] INFORMATION-SOURCES 1988 - THE ANNUAL DIRECTORY OF THE INFORMATION-INDUSTRY-ASSOCIATION - VANGORDER,BE ONLINE REVIEW, 1989, 13 (01): : 58 - 59
- [9] INFORMATION-SOURCES 1987 - THE ANNUAL DIRECTORY OF THE INFORMATION-INDUSTRY-ASSOCIATION - VANGORDER,BE ELECTRONIC LIBRARY, 1987, 5 (02): : 110 - 111
- [10] INFORMATION-SOURCES 1988 - THE ANNUAL DIRECTORY OF THE INFORMATION-INDUSTRY-ASSOCIATION - VANGORDER,BE ONLINE REVIEW, 1988, 12 (05): : 318 - 319