Sobhnamayan, F., A. Adl, N. Sadat Shojaee, Z. Zarei, and A. Emkani. “Physical and Chemical Properties of CEM Cement Mixed With Propylene Glycol”. Iranian Endodontic Journal, vol. 12, no. 4, Oct. 2017, pp. 474-80, doi:10.22037/iej.v12i4.17775.