Zuckerman, Edward L., author
Guilford Press , 2006
Buku Teks
Sklare, Arnold B., author
McGraw-Hill, 1964
Buku Teks
Waldo, Willis H., author
Van Nostrand Reinhold, 1960
Koleksi Publik
Bogg, Daisy, author
McGraw-Hill, 2012
Buku Teks
Lesikar, Raymond V. (Raymond Vincent), author
Irwin, 1995
Buku Teks