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Prentice-Hall, 1994
Buku Teks
Huebner, S. S.
Appleton-Century Crafts, 1958
Buku Teks
Magee, John H.
Richard D. Irwin, 1951
Buku Teks
Maclean, Joseph B.
Life Office Management Association , 1949
Buku Teks
Williem Susanto
Fakultas Teknik Universitas Indonesia, 2015
UI - Skripsi Membership