Andriyanto Setyawan, Indarto, and Deendarlianto. “Measurement of Liquid Holdup by Using Conductance Probe Sensor in Horizontal Annular Flow”. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, vol. 53, no. 1, Mar. 2024, pp. 11-24, https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/2982.