000 00302nam a2200121Ia 4500
082 _a378.03
_bASI
245 _aInteractive communication in distance education
260 _aJakarta:
_bUniversities Terbuka,
_c1990
300 _a256p.
546 _aeng
650 _aDistance education
_977415
942 _cBK
999 _c9000
_d9000