Aljebory, K. S. H., & Alhossaini , A. M. A. (2019). Principally Pseudo-Injective Semimodule. JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences, 27(4), 121 - 127. Retrieved from https://www.journalofbabylon.com/index.php/JUBPAS/article/view/2450