he Institute for Training in Municipal Administration by the International City Managers’ Association , 1954
Buku Teks
Sullivan, John L., author
McGraw-Hill, 1977
Buku Teks
Walker, Samuel, author
McGraw-Hill, 1992
Buku Teks
Smith, Bruce
Harper & Brothers Publishers, 1960
Buku Teks
McGraw-Hill, 1993
Buku Teks