Andriyanto Setyawan, Indarto, and Deendarlianto. “Simplified Correlation for Liquid Holdup in a Horizontal Two-Phase Gas-Liquid Annular Flow”. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, vol. 62, no. 1, Mar. 2024, pp. 20-30, https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/3552.