Rosdiana, Y. E., and W. Sandhika. “The Difference of PGE2 and COX-2 Expressions in Various Histological Grading of Endometrial Endometrioid Carcinoma”. Majalah Obstetri & Ginekologi, vol. 25, no. 1, Mar. 2018, pp. 1-5, doi:10.20473/mog.V25I12017.1-5.