TY - JOUR AU - Hajhosseini, Mansoureh AU - Khorsandi - Shirghan, Mohammad AU - Zandi, Saeid TI - Life Skills Training in Vocational Schools: An Essential and Effective Strategy to Reduce Aggression and Bullying JO - Journal of Instruction and Evaluation VL - 10 IS - 40 SP - 151 EP - 169 PY - 2018 DO - ER -