Popper, Karl R., author
Routledge, 1961
Buku Teks
Hollingworth, Peter, author
Nelson, 1983
Buku Teks
O`Neill, John, author
Routledge, 1995
Buku Teks
Perlman, Richard, author
McGraw-Hill , 1976
Buku Teks
Jonathan Bradshaw and Roy Sainsbury, editors
Routledge, Taylor & Francis Group, 2019
Buku Teks