Lydia, R., and B. Ravi Kumar. “Socio-Economic Profile of the Union Members in APSRTC:A Case Study of Visakhapatnam City”. American International Journal of Social Science Research 3, no. 1 (September 6, 2018): 13-21. Accessed April 7, 2020. https://www.cribfb.com/journal/index.php/aijssr/article/view/139.