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Buku Teks
Elias G. Carayannis, Urmas Varblane, Tonu Roolaht, editors
[Springer, ], 2012
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Kotler, Philip
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Solikin M. Juhro
Bank Indonesia Insitute, 2019
Artikel Jurnal
Francesco Calabro, Lucia Della Spina, Carmelina Bevilacqua, editor
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Buku Teks