Ekonomi dan Bisnis | Department of Economic Development, Faculty of Business and Economic, Universitas Surabaya. Cambridge University Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Ekonomi Dan Bisnis | Department of Economic Development, Faculty of Business and Economic, Universitas Surabaya. Cambridge University Press.
Παραπομπή σε μορφή MLA (8th εκδ.)Ekonomi Dan Bisnis | Department of Economic Development, Faculty of Business and Economic, Universitas Surabaya. Cambridge University Press.
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