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McDowall, David, et.al, author
Sage Publications, 1981
Buku Teks
Koopmans, L. H., author
Academic Press, 1974
Buku Teks
Mutiara Aisyah, author
Fakultas Eknonomi dan Bisnis Universitas Indonesia, 2016
UI - Makalah dan Kertas Kerja
Handika Suhandiana, author
2016
UI - Skripsi (Membership)