P. Deohate, Pradip, et al. “Viscosity Behaviour of Substituted Benzo-1,3,6- Thiadiazepines in Different Percentages of Solvents ”. Asian Journal of Chemistry, vol. 15, no. 2, Mar. 2010, pp. 1061-4, https://asianpubs.org/index.php/ajchem/article/view/21746.