511.5/PIR/I 27879 27880 27881 27882 27883 27884 27885 27886 27887 27888 27889 27890 27891 27892 27893 27894 27895 27896 27897 27898

Pirzada, S.         Introduction to Graph Theory . – Hyderabad : Universities Press, 2012         396p.         ISBN9788173717604 :