Lulaj, Enkeleda. “A Sustainable Business Profit through Customers and Its Impacts on Three Key Business Domains: Technology, Innovation, and Service (TIS)”. Business, Management and Economics Engineering 21, no. 1 (May 9, 2023): 19–47. Accessed November 17, 2024. https://mma.vgtu.lt/index.php/BMEE/article/view/18618.