000
00335nam a2200133Ia 4500
008
240227s9999 xx 000 0 und d
041
_a
Sinhala
245
0
_a
ධාරා විද්යුතය
260
_b
NIE,
_c
1988
300
_a
44p;
_b
ill.;
_c
28cm
650
_a
Science-Maths
658
_a
Distance Education
942
_c
MD
999
_c
98087
_d
98087