Nicholas, Roy F.
Blakes of poer, 1845-1877 / Roy F. Nicholas
Hill and Wang, 1961
 Buku Teks
Kern, Roy F.
Steel selection/Roy F Steel, Manfred E.Suess
John Wiley & Sons, 1979
 Buku Teks
Yafhet Titus, author
Programasi poer pondasi tiang pancang
1996
 UI - Skripsi (Membership)
Dickens, Charles, 1812-1870, author
Nicholas nickleby
Everyman`s Library, 1993
 Buku Teks
Ellen, Roy F.
Nuaulu settlement and ecology : an approach to the environmental relations of an Eastern Indonesian community / Roy F. Ellen
Martinus Nijhoff, 1978
 Buku Teks
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