Das, Komal K., Ashwani Kumar Upadhyay, and Subrata Das. “Sales Training Effectiveness: A Review”. Prabandhan: Indian Journal of Management 6, no. 7 (July 1, 2013): 26–32. Accessed December 18, 2025. https://indianjournalofeconomicsandresearch.com/index.php/pijom/article/view/60017.