N. Senniangiri, V. Purusothaman, A. Ramakrishnan, K. Ramprakash, and S. Shanthakumar. 2018. “Design and Analysis in Drill Offset Using Root Cause Analysis”. International Journal of Intellectual Advancements and Research in Engineering Computations 6 (1):651-54. https://ijiarec.com/ijiarec/article/view/524.