00446nam a22001457a 4500003000400000005001700004008004100021040001400062100002500076245004900101260000900150300002900159500008600188504002600274OSt20171010095306.0110922t        xxu||||| |||| 00| 0 eng d  aMMSUcULS  aAlbano, Jonellyn S.   aOn singularity of graphscJonellyn S. Albano  c2009  aviii, 33 leaves c28 cm.  aThesis (M.A. Math) -- Mariano Marcos State University-Graduate School, Laoag City  aBibliography: leaf 33