Disha D. Patel, Prof. V. A. Agrawal, and Prof. V. A. Arekar. “PARAMETRIC STUDY OF STEEL BEAM WITH OPENING”. International Journal of Advance Research in Engineering, Science & Technology, vol. 3, no. 4, Apr. 2016, pp. 303-9, https://ijarest.org/index.php/ijarest/article/view/548.