KOCAY, William a Donald L. KREHER. Graphs, algorithms, and optimization. Second edition. Boca Raton: CRC Press, [2017]. Discrete mathematics and its applications.
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GROSS, Jonathan L., Jay YELLEN a Ping ZHANG, ed. Handbook of graph theory. 2nd ed. Boca Raton: CRC Press, c2014. Discrete mathematics and its applications.
ISBN 978-1-4398-8018-0.
RENDER, Barry. Quantitative analysis for management. 12th ed., global ed. Boston: Pearson, c2015. Always learning.
ISBN 978-1-292-05932-7.