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Tengtarto, J. A. G. INFLUENCES OF INTERNAL ENVIRONMENT, EXTERNAL ENVIRONMENT, BUSINESS ETHICS AND ENTREPRENEURSHIP TOWARD BUSINESS PERFORMANCES THROUGH DIFFERENTIATION STRATEGIES AND COMPETING SUPERIORITIES IN SMALL INDUSTRIES IN SURABAYA CITY: INFLUENCES OF INTERNAL ENVIRONMENT, EXTERNAL ENVIRONMENT, BUSINESS ETHICS AND ENTREPRENEURSHIP TOWARD BUSINESS PERFORMANCES THROUGH DIFFERENTIATION STRATEGIES AND COMPETING SUPERIORITIES IN SMALL INDUSTRIES. ABR 2020, 8, 138-151.