B.Dhanasakkaravarthi, K.Balasubramanian, and G.Senthil Kumar. 2018. “IMPROVED METHOD OF RIB LEVELLING IN AP IMPELLER FABRICATION”. International Journal of Advance Engineering and Research Development (IJAERD) 5 (4):1188-92. https://www.ijaerd.org/index.php/IJAERD/article/view/5606.