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Angelica Fadya Noventi, author
2017
UI - Skripsi (Membership)
Ardiana Primastuti, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Tesis (Membership)
Preston, Samuel H., author
Academic Press, 1976
Buku Teks
Hertzler, Joyce O., author
University of Nebraska Press , 1956
Buku Teks