Daud, A.H. et al. 2018. PERSONALITY TRAITS, INTERPERSONAL DIFFICULTIES AND MENTAL HEALTH PROBLEMS OF KHAT USERS AND NON-KHAT USERS: A COMPARATIVE STUDY. KHYBER MEDICAL UNIVERSITY JOURNAL. 10, 4 (Dec. 2018), 206–11. DOI:https://doi.org/10.35845/kmuj.2018.18264.