Moazzem, M. S., M. N. Islam, A. K. M. Masum, and M. R. Habib. “Effect of Different Levels of Sugar on Qualitative Characteristics of Lassi Prepared from Sour Dahi”. Fundamental and Applied Agriculture, vol. 3, no. 2, Apr. 2018, pp. 434–439, doi:10.5455/faa.286429.