Bubble temperatures at 26.6, 66.5, and 93.8 kPa at ten liquid phase compositions spread evenly over the entire composition range are measured for the three binary systems noted in the title, using a Swietoslawski type ebulliometer. The temperature (T)-composition (x) data are found to be well represented by the Wilson model. The calculated values of the vapor phase composition and the liquid phase activity coefficients are also presented.