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Majalah, Jurnal, Buletin
Verawati Puspitaningtyas
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Tesis (Membership)
Djoko Sumitro
Gadjah Mada University Press, 1990
Buku Teks
Sage Publications , 2018
Majalah, Jurnal, Buletin
University of technology,
Majalah, Jurnal, Buletin