ASCE, 1991
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Barrie, Donald S., author
John Wiley & Sons, 1991
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Ruth Astiti, author
2018
UI - Tesis (Membership)
Nadya Puspa Lukitasari, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2017
UI - Skripsi (Membership)
Anderson, Richard C., author
McGraw-Hill, 1960
Buku Teks