Bhuana Ilmu Popule, 2007
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Borner, Katy, author
London : MIT press, 2015
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Gasa Bahar Putra, author
2016
UI - Skripsi (Membership)
Trisnawati Wardah, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2012
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World Express Mapping Sdn. Bhd, [date of publication not identified]
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