Glau, Gregory R., author
Doa Jones-Irwin, 1986
Buku Teks
Norusus, Marija, author
SPSS Inc, 1990
Buku Teks
Fakultas Teknik Universitas Indonesia, 1995
UI - Skripsi (Membership)
James D. Foley...[et.al]
Addison-Wesley , 1990
Buku Teks
James D. Foley...[et.al]
Addison-Wesley , 1990
Buku Teks