ORVESTO 1978-II

In the middle of the sixties Testologen AB, in cooperation with a group of advertisers, introduced a new way of investigation where data about the target groups, i.e. interests,...二十世纪六十年代中期，Testologen AB与一批广告商合作，推出了一种全新的调研方法，该方法采集目标群体的相关数据，即兴趣爱好等……