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Addison-Wesley, 1977
Buku Teks
Spiegel, Murray R., author
Erlangga, 1994
Buku Teks
Universitas Indonesia, 1997
UI - Skripsi (Membership)
Pardoe, Lain, 1970-, author
John Wiley & Sons, 2012
Buku Teks
Kerlinger, Fred N. (Fred Nichols), 1910-, author
Nur Cahaya, 1987
Buku Teks