Jassim, Wadhah S., Department of Mathematics, Faculty of Science, Soran University, Soran, Erbil, Iraq.
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Sultan Qaboos University Journal for Science [SQUJS] مجلد 22 عدد 1 (2017) - Articles
Incidence Matrices of Directed Graphs of Groups and their up-down Pregroups
الملخص PDF (English)