關於「what are the four bystander intervention strategies?」標籤，搜尋引擎有相關的訊息討論：

Be an active bystander | Breaking the silencewww.breakingthesilence.cam.ac.uk › prevention-supportThe 5Ds of Bystander Intervention Training - Right To Berighttobe.org › guides › bystander-intervention-training[PDF] Take action: - VicHealthwww.vichealth.vic.gov.au › files › Tak