Psychometric Evaluation of Brief Reason for Living Inventory for Adolescents (BRFL-A) Instrument in the Indonesian Language oleh Veranita Pandia MD, PhD, Efi Fitriana PhD, Irvan Afriandi MD, DrPH, Fredrick Dermawan Purba PhD, Febrianti Santiardi Danasasmita MD, Abdullah Ichsan MD, Kent Pradana MD, Alfonso Haris Setia Santoso MD, Rita Engellia MD, Fithriani Salma Mardhiyah MD