N. Senthilkumaran, Dr. J. Jayavel, S. Ramesh Babu. “Impact of Psychological Needs of the Workers on Determining Type and Strength of Motivation”. Design Engineering, no. 1 (February 13, 2022): 1627-1636. Accessed July 22, 2024. http://thedesignengineering.com/index.php/DE/article/view/9102.