Nuqui, J. P. E., R. G. Damalerio, S. Meas, S. Yem, and A. N. Soriano. “Generalized Pitzer Correlation for Density Calculations of Ionic Liquids”. ASEAN Journal of Chemical Engineering, Vol. 21, no. 1, June 2021, pp. 38-51, https://journal.ugm.ac.id/v3/AJChE/article/view/9147.