Mahendra A. Patel, and N. B. Desai. “An Approximate Analytical Solution of Boussinesq’s Equation for Infiltration Phenomenon in Unsaturated Porous Medium”. International Journal of Mathematics And its Applications 6, no. 1 - C (February 15, 2018): 463–470. Accessed July 22, 2024. https://ijmaa.in/index.php/ijmaa/article/view/1090.