000 00273nam a22001097u 4500
005 20261003210153.0
008 260926nuuuuuuuuxx ||||| |||||||| ||khm d
035 _a(PTEC-PMB)c77ea7b8ed0eac94
041 0 _akhm
245 0 0 _aអត្តាគឺសត្រូវ
942 _cBK
999 _c2573
_d2573