000 00329nam a2200121Ia 4500
008 240830s9999 xx 000 0 und d
100 _a2017Reg
245 0 _aOptical Communication
260 _bAnna University
_c2023 Nov-Dec
650 _aEC8751
856 _uhttp://library.psgitech.ac.in/Question_Bank/QB1579.pdf
942 _cQB
999 _c29393
_d29393