000 00281nam a22001097a 4500
082 _bPRO
_a343.099
100 _aProfessional
245 _aThe telecom regulatory authority of India act 1997
260 _aDelhi
_bProfessional Book Publishers
_c2025
300 _axxxiv,456 p.
942 _cB
999 _c846
_d846