000
00257nam a22001217a 4500
003
SGT
082
_a
573
_b
TRI
100
_a
TRIPATHI, SALIL
245
_a
TEACHING OF PHYSICAL SCIENCE
260
_a
DELHI
_b
DOMINANT
_c
2017
300
_a
279
942
_2
ddc
_c
BK
999
_c
18961
_d
18961