000 00248nam a22000977a 4500
100 _aBAIRAM,RAVINDAR;
245 _aA TEXTBOOK OF BIOSTATISTICS AND RESEARCH METHODOLOGY
260 _aHYDERABAD:
_bSIA
_c2022
300 _aiv;5.10+iq4qp.32p
942 _cBK
999 _c16006
_d16006