Giachetti, Claudio. “A Resource-Based Perspective on the Relationship Between Service Diversification and Firm Performance: Evidence from Italian Facility Management Firms”. Journal of Business Economics and Management 13, no. 3 (May 28, 2012): 567-585. Accessed November 9, 2024. https://mma.vgtu.lt/index.php/JBEM/article/view/4407.