Hameed Ibrahim, Omar, and Nuhad Salim Al-Mothafar. “Pure Essential-Coessential and Pure Essential-Coclosed Submodules”. Journal of Al-Qadisiyah for Computer Science and Mathematics, vol. 17, no. 1, Mar. 2025, pp. Math. 9–15, doi:10.29304/jqcsm.2025.17.11985.