Burn, Shawn Meghan, author
California, 2004
Buku Teks
Russel, Elizabeth
Family Service Association of America, 1947
Buku Teks
Catalano, Ralph
Pergamon Press , 1979
Buku Teks
Sears, David O., author
Erlangga, 1991
Buku Teks
Rusadi Kantaprawira, author
Bunda Karya, 1987
Buku Teks