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2. Validation of the Urdu translation of the Beck Scale for Suicide Ideation;Ayub;Assessment,2008
3. Practical considerations for using exploratory factor analysis in educational research;Beavers;Practical Assessment, Research & Evaluation,2013
4. Psychometric characteristics of the Scale for suicide ideation with psychiatric outpatients;Beck;Behaviour Research and Therapy,1997
5. Suicide ideation at its worst point: a predictor of eventual suicide in psychiatric outpatients;Beck;Suicide & Life-Threatening Behavior,1999