Manjunath, B. S., D. S. Ramakrishna, and U. B. Khadabadi. “Involution and Body Force Method for Solution of Half Plane Problems With Sub-Surface Hole”. The International Journal of Science & Technoledge, vol. 2, no. 2, Feb. 2014, http://internationaljournalcorner.com/index.php/theijst/article/view/128100.