Hatfield, Anthea
The Complete Recovery Room Book
Oxford University Press, 1992
 Buku Teks SO
Brenner, Gary
The Complete handbook for the entrepreneur
Prentice-Hall, 1990
 Buku Referensi
Jorgensen, Finn
The complete handbook of magnetic recording
The McGraw-Hill Companies, 1996
 Buku Referensi
De Vries, Mary Ann
Complete secretary's handbook
Prentice-Hall, 1991
 Buku Referensi
Doris, Lillian
Complete secretary's handbook
Prentice-Hall, 1970
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