Twort, A. C.
Arnold, 1995
Buku Teks SO
Oberlender, Garold D.
Mcgraw-Hill Education, 2014
Buku Teks SO
Oberlender, Garold D.
McGraw-Hill, 1993
Buku Teks SO
Christian, John
John Wiley & Sons, 1981
Buku Teks SO
Ahuja, Hira N.
John Wiley & Sons, 1994
Buku Teks SO