Sattler, Jerome M., author
Jerome M. Sattler, 1988
Buku Teks
Piaget, Jean
Routledge & Kegan Paul, 1975
Buku Teks
Whaley, Lucille F., author
Mosby , 1979
Buku Teks
Whaley, Lucille F., author
Mosby, 1991
Buku Teks
Sroufe, L. Alan, author
Cambridge University Press, 1996
Buku Teks