Kontentsu no tayōsei : tayō na jōhō ni sesshite iru no ka / Asai Sumiko cho = Diversity of broadcast and music : do we have a wide choice? / Sumiko Asai
コンテンツの多様性 : 多様な情報に接しているのか / 浅井澄子著 = Diversity of broadcast and music : do we have a wide choice? / Sumiko Asai