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Medwell Journals, 2016
Artikel Jurnal
Puhn, Laurie, author
TransMedia, 2006
Buku Teks
Stone, Biz, author
New Riders, 2003
Buku Teks
Universitas Indonesia, 2005
UI - Tugas Akhir
Teguh Setiawan, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1992
UI - Skripsi Membership