Roberts, Larry S.
Foundations of parasitology / Larry S. Roberts, John Janovy
McGraw-Hill, 2000
Buku Teks
Roberts, Don D.
The existential graphs of Charles S. Peirce / Don D. Roberts
Mouton, 1973
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Bell, Gerard D.
Organizations and human behaviour/ Gerald D. Bell
Prentice-Hall, 1967
Buku Teks
Suttles, Gerald D
The social order of the slum / Gerald D. Suttles
The University of Chicago Press, 1974
Buku Teks
Roberts, Arthur D.
Programming for numerical control machines / Arthur D. Roberts and Richard C. Prentice
McGraw-Hill , 1968
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