Altway, S., K. Kuswandi, I. Zulfetra, and F. Nuharani. “CO2 Solubility in Electrolyte Solution of Potassium Carbonate With the Addition of Promotor Amines (MDEA-DEA/ PZ-DEA) at Various Temperatures”. Journal of Engineering and Technological Sciences, vol. 48, no. 6, Dec. 2016, pp. 665-78, doi:10.5614/j.eng.technol.sci.2016.48.6.3.