edited by Douglas C. Greenwood
McGraw-Hill, 1959
Buku Referensi
edited by Douglas C. Greenwood
McGraw-Hill, 1961
Buku Teks SO
Araminta Putrie Nirami
Fakultas Teknik Universitas Indonesia, 2014
UI - Skripsi Membership
Lubis, Sudjaswin E.
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2006
UI - Disertasi Membership
Ashby, Mike
Butterworth-Heinemann, 2014
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