The three families that carried out multiple bombings in the Indonesian city of Surabaya this week knew each other and had all studied together at a Quran study group, according to authorities.
원문출처 : https://www.cnn.com/2018/05/15/asia/surabaya-bombings-intl/index.html
원문출처 : https://www.cnn.com/2018/05/15/asia/surabaya-bombings-intl/index.html