McCleary, John
User's guide to spectral sequences
Publish or Perish, 1985
 Buku Referensi
O`Hanlon, John F.
A user's guide to vacuum technology
John Wiley & Sons, 1980
 Buku Teks
Anis, Nick
The PC user's guide
Osborne-McGraw-Hill , 1991
 Buku Teks SO
Turbo C : user's guide
Borland International, 1987
 Buku Referensi
Eadie, Donald
A user's guide to computer peripherals
Prentice-Hall, 1982
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