Rubiandini, R., Siregar, S., Suhascaryo, N. and Efrial, D. 2014. The Effect of CaO and MgO as Expanding Additives to Improve Cement Isolation Strength under HPHT Exposure. Journal of Engineering and Technological Sciences. 37, 1 (Jan. 2014), 29-48. DOI:https://doi.org/10.5614/itbj.eng.sci.2005.37.1.3.