000 00520nam a2200193Ia 4500
008 160113s9999 xx 000 0 und d
100 _aRafael, Erwin
245 _aTechnology as a social system:
245 _bA Systems theoretical conceptualization/
245 _cErwin F. Rafael
260 _c2013
300 _a61:2 page 319
440 _aPhilippine Sociological Review
650 _aNiklas Luhmann.
650 _aSocial systems.
650 _aSystems theory.
650 _aTechnological.
942 _cSE
999 _c289800
_d289800