S.Balakrishnan, K.Mohanraj, K.S Naveen, G.Pethanan, and M.Rajaram. 2017. “Productivity Improvement in Polypropylene Bag Manufacturing Using Value Stream Mapping”. International Journal of Intellectual Advancements and Research in Engineering Computations 5 (2):1731-35. https://ijiarec.com/ijiarec/article/view/1373.