S. Ledinger, „Sales Process as a Service (SPAS): Development and Validation of an Extension to the Shortened Selling Orientation – Customer Orientation (SOCO) Score (SOCO-SPAS)“, OE, let. 68, št. 4, str. 28–42, dec. 2022, Pridobljeno: 24. november 2025. [Na spletu]. Dostopno na: https://old.journals.um.si/index.php/oe/article/view/2576