Grubbs, Robert L
Gregg shorthand for colleges speed building/ Scot Ober
McGraw-Hill Book, 1982
Buku Teks
Leslie, Louis A.
Gregg dictation simplified / Louis A. Leslie, Charles E. Zoubek, Madeline S. Strony
McGraw-Hill, 1955
Buku Teks
Kiver, Milton S.
F-M simplified
D. Van Nostrand, 1960
Buku Teks
Smith, Howard M.
Principles of holography/Howard M. Smith
John Wiley & Sons, 1975
Buku Teks SO
Dewett, Kewal Krishan
Refresher course in economic theory / Kewal Krishan Dewett dan J. D. Varma
Premier Publishing Co. , 1969
Buku Teks SO