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Gramedia Pustaka Utama, 2015
Buku Teks
Sembiring, Riswanto, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2010
UI - Tesis (Open)
I Gusti Putu Whisnu Ardhana Putra, author
Universitas Indonesia, 2016
UI - Skripsi (Membership)
Hall, Challis A., author
Holt, Rinehart and Winston, 1960
Buku Teks
Tri Winarno, author
LP2M UNNES, 2018
Buku Teks