Jassim, W. S. (2017). Incidence Matrices of Directed Graphs of Groups and their up-down Pregroups. Sultan Qaboos University.
Chicagoスタイル(17版)引用形式Jassim, Wadhah S. Incidence Matrices of Directed Graphs of Groups and Their Up-down Pregroups. Sultan Qaboos University, 2017.
MLA(9版)引用形式Jassim, Wadhah S. Incidence Matrices of Directed Graphs of Groups and Their Up-down Pregroups. Sultan Qaboos University, 2017.
警告: この引用は必ずしも正確ではありません.