Biswal, P. C. (2009). Discrete mathematics and graph theory .- 2nd ed (2nd ed.). PHI Learning Private Ltd.
Dyfyniad Arddull ChicagoBiswal, Purna Chandra. Discrete Mathematics and Graph Theory .- 2nd Ed. 2nd ed. New Delhi: PHI Learning Private Ltd, 2009.
Dyfyniad MLABiswal, Purna Chandra. Discrete Mathematics and Graph Theory .- 2nd Ed. 2nd ed. PHI Learning Private Ltd, 2009.
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