000 00455nam a2200145Ia 4500
001 0000019897
008 231110s9999 xx 000 0 und d
022 _a22895388
090 0 0 _aDIG
_b621.56
_c2017
245 1 0 _aDiges Ilmiah Centre of Air-Conditioning and Refrigeration
_bVol.5, Oktober 2017
260 _aIpoh,Perak
_bPolytechnic Ungku Omar
300 _a44p
_bill
_c30cm
650 0 _aAir-conditioning
650 0 _aRefrigeration
_xrefrigeration machinery
999 _c59579
_d59579