000 00258nam a22001217a 4500
040 _cHS
082 _a539
100 _aHANG SIM
245 _aPhysics year 1 : រូបវិទ្យា
260 _aRUA
_bHANG SIM
_c2001
300 _a279p;
942 _cKB
999 _c10222
_d10222