“Densities, Refractive Indices and Excess Properties for the Binary Mixtures of 2-Hydroxyethanaminium Formate [HEF] With Monoethanolamine (MEA) at T = 293.15 to 313.15 K”. Journal of the Pakistan Institute of Chemical Engineers 42, no. 1 (July 16, 2014): 13–22. Accessed August 12, 2026. https://www.piche.org.pk/journal/index.php/jpiche/article/view/149.