Ford foundation , 2003
Buku Referensi
Ford, Robert N.
American Management Association, 1969
Buku Teks
Patel, Shanon., Duncan, Henry, 1971-, editor
Wiley-Blackwell, 2011
Buku Teks
Singh, R. P. (Ramesh Prasad), author
Gulf Professional, 2013
Buku Teks
Mohamad, Gunawan
MSPI (Masyarakat Seni Pertunj. Indonesia), 2003
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