Copi, Irving M., author
Macmillan, 1961
Buku Teks
Copi, Irving M., author
Prentice-Hall, 1995
Buku Teks
Copi, Irving M., author
Prentice-Hall, 1979
Buku Teks
Dalen, Dirk van, author
Springer-Verlag, 1994
Buku Teks
Filika Chrestella Lisjanto, author
Fakultas Teknik Universitas Indonesia, 2018
UI - Skripsi (Membership)