edited by Norman G. Einspruch
Academic Press, 1981
Buku Teks
Karch, Amy M.
Lippincott Williams & Wilkins, 2001
Buku Teks
Sutcliffe, H.
Longman, 1964
Buku Teks
Owen, George E.
Harper and Row, 1966
Buku Teks
Owen, George E.
Harper and Row, 1967
Buku Teks