Bhattacharyya, Subarnarekha, Biswajit Roy, and Moutushi Dutta Choudhury. 2017. “Pattern Formation in Drying Drops of Colloidal Copper Sulphate Solution on Glass Surface”. Journal of Surface Science and Technology 32 (3-4):79–84. https://doi.org/10.18311/jsst/2016/7752.