J. D. Pandey, G. P. Dubey, Neelima Tripathi, and A. K. Singh. “Evaluation of Internal Pressure of Multicomponent Liquid Mixtures Using Velocity and Density Data”. Journal of International Academy of Physical Sciences, vol. 1, no. 3-4, Dec. 1997, pp. 117-24, https://www.iaps.org.in/journal/index.php/journaliaps/article/view/682.