TY - GENERIC DO - 10.20944/preprints201905.0188.v1 UR - http://dx.doi.org/10.20944/preprints201905.0188.v1 TI - Relationships between Middle School Students’ Smartphone dependency and Aggression: Mediating and Moderating Effects of Ego-Resilience, Parenting Behavior and Peer Attachment T2 - Preprints AU - Um, Youn-Joo AU - Choi, Yun-Jung AU - Yoo, So Yeon PY - 2019 DA - 2019/05/15 PB - Preprints