K. K. Sharma, M. Tomar, and A. Tadimarri, “Optimizing Sales Funnel Efficiency: Deep Learning Techniques for Lead Scoring”, J. Knowl. Learn. Sci. Technol., vol. 2, no. 2, pp. 261–274, Nov. 2023, doi: 10.60087/jklst.vol2.n2.p274.