68th Fall Conference of Japanese Society for the Study of Social Welfare subtitle: Theorization and Practice of Anti-oppressive Practice: How to achieve social justice? Izumi Niki Viveka Ichikawa Izumi Sakamoto Naoko Ibaraki Hiroshi Takebata タグ Izumi Niki Viveka Ichikawa Izumi Sakamoto Naoko Ibaraki Hiroshi Takebata