Waldy Rahman Ziliwu
Fakultas Teknik Universitas Indonesia, 2006
UI - Skripsi Membership
American Institute of Certified Public Accountants, 1965
Buku Teks
Ashworth, Allan
Longman, 2001
Buku Teks
Johnston, John E.
Crosby Lockwood Staples, 1975
Buku Teks
Dell`Isola, Alphonse J.
Van Nostrand Reinhod, 1982
Buku Teks