000 00431 a2200145 4500
020 _a9788194739807 (hb)
082 _a020.72 BAL/Tex
100 _aBalasubramanian, P
_eAuthor
245 _aA textbook of user studies and informatrics
260 _aNew delhi:
_bEss Ess Publications,
_c2021.
300 _a268p.;
_c23 x 15 cm.
650 _ainformetrics
700 _aViji, P
_eAuthor
700 _aKumar, E santhana
_eAuthor
999 _c138258
_d138258