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Prentice-Hall, 1981
Buku Teks
Lincoln, Edmond E., author
McGraw-Hill, 1941
Buku Teks
Pusat Kajian Ilmu Ekonomi (Puskanomi) Universitas Indraprasta PGRI, 2016
Majalah, Jurnal, Buletin
Crabbe, Ernest H., author
South-Western Publishing, 1951
Buku Teks
Mills, Richard L., author
McGraw-Hill Kogakusha, 1977
Buku Teks